Kiss, T.: A Pexider equation containing the arithmetic mean.
Aequ. Math. [Epub ahead of print] (-), -, 2023.

Nagy, G.: Characterizations of centrality in C*-algebras via local convexity of functions.

Páles, Z., Pasteczka, P.: Estimating the Hardy constant of nonconcave Gini means.
Math. Inequal. Appl. 26 (1), 195-203, 2023.

Zheng, K., Raza, A., Abed, A., Khursheed, H., Seddek, L., Ali, A., Haq, A.: New fractional approach for the simulation of (Ag) and (TiO2) mixed hybrid nanofluid flowing through a channel: Fractal fractional derivative.
Case Stud. Therm. Eng. 45 1-12, 2023.

Páles, Z., Zakaria, A.: On the equality problem of two-variable Bajraktarević means under first-order differentiability assumptions.
Aequ. Math. 97 279-294, 2023.

Almutairi, A., Ali, A., Bazighifan, O., Iambor, L.: Oscillatory Properties of Fourth-Order Advanced Differential Equations.
Mathematics. 11 (6), 1-11, 2023.

Raza, A., Abed, A., Almusawa, M., Seddek, L., Ali, A.: Prabhakar fractional simulation for inspection of CMC-based nanofluid flowing through a poured vertical channel.
Case Stud. Therm. Eng. In press 1-14, 2023.

Al-Ghafri, K., Alabdala, A., Redhwan, S., Bazighifan, O., Ali, A., Iambor, L.: Symmetrical Solutions for Non-Local Fractional Integro-Differential Equations via Caputo-Katugampola Derivatives.
Symmetry. 15 (3), 1-15, 2023.

Ali, A., Jaber, A., Yaseen, M., Rasheed, M., Bazighifan, O., Nofal, T.: A Comparison of Finite Difference and Finite Volume Methods with Numerical Simulations: Burgers Equation Model.
Complexity. 2022 1-9, 2022.

Bessenyei, M., Tóth, N.: A Convex Analysis View of the Barrier Problem.
Journal of Convex Analysis 29 (3), 827-836, 2022.

Gát, G., Goginava, U.: Almost everywhere convergence and divergence of Cesàro means with varying parameters of Walsh-Fourier series.
Arab. J. Math. 11 (2), 241-259, 2022.

Gát, G., Lucskai, G.: Almost Everywhere Convergence of Cesàro-Marczinkiewicz Means of Two-Dimensional Fourier Series on the Group of 2-Adic Integers.
P-Adic Num Ultrametr Anal Appl. 14 (2), 116-137, 2022.

Páles, Z.: A maximum theorem for generalized convex functions.
Stud. Univ. Babes-Bolyai, Math. 67 (1), 21-29, 2022.

Boros, Z., Menzer, R.: An alternative equation for generalized monomials.
Aequ. Math. 97 113-120, 2022.

Páles, Z., Zakaria, A.: An Extension of the Abel-Liouville Identity.
Annales Mathematicae Silesianae 36 (2), 206-214, 2022.

Fazekas, B., Pacella, F., Plum, M.: Approximate nonradial solutions for the Lane-Emden problem in the ball.
Advances in Nonlinear Analysis 11 (1), 268-284, 2022.

Boros, Z., Iqbal, M., Száz, Á.: A relational improvement of a true particular case of Fierro's maximality theorem.
Filomat. 36 7091-7101, 2022.

Boros, Z., Iqbal, M., Száz, Á.: A relational improvement of a true particular case of Fierro's maximality theorem.
Filomat. 36 (20), 7091-7101, 2022.

Gselmann, E.: A STEM tanításának és tanulásának aktuális kérdései: Bevezető=Introduction.
Ma.Tud. 183 (11), 1375-1382, 2022.

Gát, G., Goginava, U.: Cesàro means with varying parameters of Walsh-Fourier series.
Period. Math. Hung. [Epub ahead of print]2022.

Rassias, T., Salih, M., Száz, Á.: Characterizations and Set Theoretic Properties of Some Generalized Open and Fat sets in Relator Spaces.
In: Mathematical Analysis, Optimization, Approximation and Applications, World Scientific, Singapore, "Accepted by publisher", 1-96, 2022.

Boros, Z., Garda-Mátyás, E.: Conditional equations for monomial functions.
Publ. Math. Debr. 100 (3-4), 263-276, 2022.

Páles, Z., Shihab, M.: Decomposition of higher-order Wright convex functions revisited.
Results Math. 77 (2), 1-11, 2022.

Khan, F., Khalid, M., Al-Moneef, A., Ali, A., Bazighifan, O.: Freelance Model with Atangana-Baleanu Caputo Fractional Derivative.
Symmetry. 14 (11), 2424-, 2022.

Acharjee, S., Rassias, T., Száz, Á.: Galois and Pataki Connections for Ordinary Functions and Super Relations.
Electronic Journal of Mathematics 4 46-99, 2022.

Bessenyei, M., Pénzes, E.: Generalized fractals in semimetric spaces.
Nonlinear Anal.-Theory Methods Appl. 220 1-15, 2022.

Kocsis, M., Páles, Z.: Hutchinson's theorem in semimetric spaces.
J. Fixed Point Theory Appl. 24 (4), 1-19, 2022.

Barczy, M., Páles, Z.: Limit Theorems for Deviation Means of Independent and Identically Distributed Random Variables.
J. Theor. Probab. [Epub ahead of print] (-), 1-41, 2022.

Grünwald, R., Páles, Z.: Local and global comparison of nonsymmetric generalized Bajraktarević means.
J. Math. Anal. Appl. 512 (2), 1-12, 2022.

Bessenyei, M., Maksa, G.: Mennyi a téglalap területe?.
Középisk. Mat. Fiz. Lapok. 72 (4), 194-198, 2022.

Fechner, Ż., Gselmann, E., Székelyhidi, L.: Moment functions of higher rank on polynomial hypergroups.
Adv. Oper. Theory. 7 (3), 1-9, 2022.

Sultana, M., Arshad, U., Ali, A., Bazighifan, O., Al-Moneef, A., Nonlaopon, K.: New Efficient Computations with Symmetrical and Dynamic Analysis for Solving Higher-Order Fractional Partial Differential Equations.
Symmetry. 14 (8), 1-16, 2022.

Bazighifan, O., Al-Moneef, A., Ali, A., Raja, T., Nonlaopon, K., Nofal, T.: New oscillation solutions of impulsive conformable partial differential equations.
AIMS Math. 7 (9), 16328-16348, 2022.

Yaseen, M., Ali, A., Al-Moneef, A., Bazighifan, O., Nofal, T., Ghanim, F.: New Results of Fixed-Point Theorems in Complete Metric Spaces.
Math. Probl. Eng. 2022 1-5, 2022.

Arshad, U., Sultana, M., Ali, A., Bazighifan, O., Al-Moneef, A., Nonlaopon, K.: Numerical Solutions of Fractional-Order Electrical RLC Circuit Equations via Three Numerical Techniques.
Mathematics. 10 (17), 1-16, 2022.

Molnár, G., Páles, Z.: On convex and concave sequences and their applications.
Math. Inequal. Appl. : 3 (3), 727-750, 2022.

Madhuri, V., Bazighifan, O., Ali, A., El-Mesady, A.: On Fuzzy F*-Simply Connected Spaces in Fuzzy F*-Homotopy.
J. Funct. space. 2022 1-6, 2022.

Grünwald, R., Páles, Z.: On the invariance of the arithmetic mean with respect to generalized Bajraktarević means.
Acta Math. Hung. 166 (2), 594-613, 2022.

Rassias, T., Száz, Á.: Ordinary, Super and Hyper Relators Can Be Used To Treat the Various Generalized Open Sets in a Unified Way.
In: Approximation and Computation in Science and Engineering / N.J. Dars; Th.M. Rassias (Eds.), Springer Nature, Switzerland, 709-782, 2022. ISBN: 9783030841225

Gselmann, E.: Polynomial identities satisfied by generalized polynomials.
Publ. Math. Debr. 101 (3-4), 421-450, 2022.

Kiss, T.: Regular solutions of a functional equation derived from the invariance problem of Matkowski means.
Aequ. Math. 96 (5), 1089-1124, 2022.

Rassias, T., Salih, M., Száz, Á.: Set-theoretic Properties of Generalized Topologically Open Sets in Relator Spaces.
In: Mathematical Analysis in Interdisciplinary Research, Springer, Natural Switzeland, 661-730, 2022.

Fechner, Ż., Gselmann, E., Székelyhidi, L.: Spectral synthesis via moment functions on hypergroups.
Forum Math. 34 (5), 1187-1197, 2022.

Gát, G., Goginava, U.: The Walsh-Fourier Transform on the Real Line.
J. Contemp. Math. Anal.-Armen. Aca. 57 (4), 205-214, 2022.

Gselmann, E., Solymosi, K.: A felsőoktatás diverzitásának növeléséhez alapvető szemléletváltásra van szükség = A Fundamental Change in Mindset Is Needed to Increase the Diversity in Higher Education.
Ma.Tud. 182 (11), 1451-1476, 2021.

Rassias, T., Száz, Á.: A general framework for studying certain generalized topologically open sets in relator spaces.
In: Nonlinear Analysis, Differential Equations, and Applications. Ed.: Themistocles M. Rassias, Springer Cham, Switzerland, 415-491, 2021. ISBN: 9783030725631

Molnár, G., Páles, Z.: An extension of the Rådström cancellation theorem to cornets.
Semigr. Forum. 102 (3), 765-793, 2021.

Rassias, T., Száz, Á.: Basic tools and continuity-like properties in relator spaces.
Contrib. Math. 3 77-106, 2021.

Rassias, T., Salih, M., Száz, Á.: Characterizations of Generalized Topologically Open Sets in Relator Spaces.
Montes Taurus J. Pure Appl. Math. 3 (3), 39-94, 2021.

Boros, Z., Tóth, P.: Interval chains and completeness in ultrapowers of ordered sets.
University of Debrecen, Institute of Mathematics and Faculty of Informatics, Debrecen, 10 p., 2021.

Fechner, Ż., Gselmann, E., Székelyhidi, L.: Moment Functions on Groups.
Results Math. 76 (4), 1-16, 2021.

Gát, G., Tilahun, A.: Multi-parameter setting (C,α) means with respect to one dimensional Vilenkin system.
Filomat. 35 (12), 4121-4133, 2021.

Páles, Z., Pasteczka, P.: New bounds for the ratio of power means.
J. Math. Inequal. : 3 (3), 1233-1237, 2021.

Grünwald, R., Páles, Z.: On additive functions with additional derivation properties.
Publ. Math. Debr. 99 (1-2), 201-221, 2021.

Kiss, T.: On the balancing property of Matkowski means.
Aequ. Math. 95 (1), 75-89, 2021.

Bálint, E., Csuka, D., Venglovecz, V., Schlosser, G., Lázár, Z., Gselmann, E., Alpár, D., Solymosi, K.: Six reasons to launch a Young Academy.
Nature. 594 599-601, 2021.

Fechner, W., Száz, Á.: Composition iterates, Cauchy, translation, and Sincov inclusions.
Acta Universitatis Sapientiae: Mathematica 12 (1), 54-84, 2020.

Páles, Z., Zakaria, A.: Equality and homogeneity of generalized integral means.
Acta math. Hung. 160 412-443, 2020.

Salih, M., Száz, Á.: Generalizations of some ordinary and extreme connectedness properties of topological spaces to relator spaces.
Electron. Res. Arch. 28 (1), 471-548, 2020.

Gát, G., Tilahun, A.: On almost everywhere convergence of the generalized Marcienkiwicz means with respect to two dimensional Vilenkin-like systems.
Miskolc Math. Notes. 21 (2), 823-840, 2020.

Páles, Z., Pasteczka, P.: On Hardy type inequalities for weighted quasideviation means.
Math. Inequal. Appl. 23 (3), 971-990, 2020.

Páles, Z., Zakaria, A.: On the equality of Bajraktarević means to quasi-arithmetic means.
Results Math. 75 19, 2020.

Száz, Á.: Birelator spaces are natural generalizations of not only bitopological spaces, but also ideal topological spaces.
In: Mathematical Analysis and Applications. Szerk.: Themistocles M. Rassias, Panos M. Pardalos, Springer International Publishing Ag, Cham, 543-586, 2019, (Springer Series in Optimization and its Applications, ISSN 1931-6828 ; 154) ISBN: 9783030313395

Gselmann, E.: Characterizations of derivations.
Diss. Math. 539 1-65, 2019.

Száz, Á.: Galois and Pataki Connections on Generalized Ordered Sets.
EJMS. 2 283-323, 2019.

Gaál, M., Nagy, G., Szokol, P.: Isometries on Positive Definite Operators with Unit Fuglede-Kadison Determinant.
Taiwan. J. Math. 23 (6), 1423-1433, 2019.

Vati, K., Székelyhidi, L.: Moment functions on hypergroup joins.
Advances in Pure and Applied Mathematics 10 (3), 215-220, 2019.

Páles, Z., Pasteczka, P.: On Hardy-type inequalities for weighted means.
Banach J. Math. Anal. 13 (1), 217-233, 2019.

Gát, G.: On the convergence of Fejér means of some subsequences of partial sums of Walsh-Fourier series.
Annales Univ. Sci. Budapest., Sect. Comp. 49. 187-198, 2019.

Páles, Z., Zakaria, A.: On the invariance equation for two-variable weighted nonsymmetric Bajraktarević means.
Aequ. Math. 93 (1), 37-57, 2019.

Páles, Z., Székelyné Radácsi, É.: A new characterization of convexity with respect to Chebyshev systems.
J. Math. Inequal. 12 (3), 605-617, 2018.

Kiss, T., Páles, Z.: On a functional equation related to two-variable weighted quasi-arithmetic means.
J. Differ. Equ. Appl. 24 (1), 107-126, 2018.

Grünwald, R., Páles, Z.: On derivations with respect to finite sets of smooth functions.
Acta math. Hung. 154 (2), 530-544, 2018.

Páles, Z., Pasteczka, P.: On Kedlaya-type inequalities for weighted means.
J. Inequal. Appl. 2018 (1), 1-22, 2018.

Gát, G., Goginava, U.: Subsequences of triangular partial sums of double Fourier series on unbounded Vilenkin groups.
Filomat. 32 (11), 3769-3778, 2018.

Olbryś, A., Páles, Z.: Support theorems in abstract settings.
Publ. Math. Debr. 93 (1-2), 215-240, 2018.

Gaál, M., Nagy, G.: Transformations on Density Operators Preserving Generalised Entropy of a Convex Combination.
Bull. Aust. Math. Soc. 98 (1), 102-108, 2018.

Bessenyei, M., Páles, Z.: A contraction principle in semimetric spaces.
J. Nonlinear Convex Anal. 18 (3), 515-524, 2017.

Boros, Z., Nagy, N.: Approximate convexity with respect to a subfield.
Acta Math. Hung. 152 (2), 464-472, 2017.

Gilányi, A., González, C., Nikodem, K., Páles, Z.: Bernstein-Doetsch type theorems with Tabor type error terms for set-valued maps.
Set-Valued Var. Anal. 25 (2), 441-462, 2017.

Zakaria, A.: Erratum to "new approach for closure spaces by relations".
Acta Math. Acad. Paedag. Nyíregyh. 33 115-116, 2017.

Székelyhidi, L., Kedumetse, V.: Functional equations on hypergroup joins.
Arch. Math. 109 (1), 41-47, 2017.

Boros, Z., Száz, Á.: Generalized Schwarz inequalitiesfor generalized semi-inner products on groupoidscan be derived from an equality.
Novi Sad J. Math. 47 (1), 177-188, 2017.

Zakaria, A.: Measuring Soft Roughness of Soft Rough Sets Induced by Covering.
In: Thriving Rough Sets. Ed.: Guoyin Wang, Andrzej Skowron, Yiyu Yao, Dominik Dominik Ślęzak, Lech Polkowski, Springer International Publishing Ag, Cham, 269-281, 2017, (Studies in Computational Intelligence, ISSN 1860-949X) ISBN: 9783319855332

Gát, G., Goginava, U.: Norm convergence of double Fourier series on unbounded Vilenkin groups.
Acta math. Hung. 152 (1), 201-216, 2017.

Páles, Z., Zakaria, A.: On the local and global comparison of generalized Bajraktarević means.
J. Math. Anal. Appl. 455 (1), 792-815, 2017.

Kiss, T., Páles, Z.: Reducible means and reducible inequalities.
Aequ. Math. 91 (3), 505-525, 2017.

Gaál, M., Molnár, L.: Transformations on density operators and on positive definite operators preserving the quantum Rényi divergence.
Period. Math. Hung. 74 (1), 88-107, 2017.

Gselmann, E., Páles, Z.: Additive solvability and linear independence of the solutions of a system of functional equations.
Acta Sci. Math. 82 (12), 101-110, 2016.

Kertész, D., Lovas, R.: A generalization and short proof of a theorem of Hano on affine vector fields.
SUT journal of Mathematics. 53 (2), 83-87, 2016.

Fechner, Ż., Székelyhidi, L.: A generalization of Gajda's equation on commutative topological groups.
Publ. Math. Debr. 88 (1-2), 163-176, 2016.

Páles, Z.: A general mean value theorem.
Publ. Math. Debr. 89 (1-2), 161-172, 2016.

Páles, Z., Pasteczka, P.: Characterization of the Hardy property of means and the best Hardy constants.
Math. Inequal. Appl. 19 (4), 1141-1158, 2016.

Páles, Z., Székelyné Radácsi, É.: Characterizations of higher-order convexity properties with respect to Chebyshev systems.
Aequ. Math. 90 (1), 193-210, 2016.

Almira, J., Székelyhidi, L.: Erratum to: On the Closure of Translation-Dilation Invariant Linear Spaces of Polynomials.
Results Math. 69 (1-2), 273-274, 2016.

Zakaria, A., John, S., El-Sheikh, S.: Generalized rough multiset via multiset ideals.
J. Intell. Fuzzy Syst. 30 (3), 1791-1802, 2016.

Kiss, T., Páles, Z.: Implications between generalized convexity properties of real functions.
J. Math. Anal. Appl. 434 1852-1874, 2016.

Botelho, F., Molnár, L., Nagy, G.: Linear bijections on von Neumann factors commuting with (lambda)-Aluthge transform.
Bull. London Math. Soc. 48 (1), 74-84, 2016.

Gát, G.: Marcinkiewicz-like means of two dimensional Vilenkin-Fourier series.
Publ. Math. Debr. 89 (3), 331-346, 2016.

Száz, Á., Zakaria, A.: Mild Continuity Properties of Relations and Relators in Relator Spaces.
In: Essays in Mathematics and its Applications. Ed.: Themistocles M. Rassias, Panos M. Pardalos, Springer International Publishing Ag, Cham, 439-511, 2016. ISBN: 9783319313368

Kandil, A., El-Tantawy, O., El-Sheikh, S., Zakaria, A.: On I-proximity spaces.
Appl. Math. Inf. Sci. Lett. 4 (2), 79-84, 2016.

Glavosits, T., Lajkó, K.: Pexiderization of some logarithmic functional equations.
Publ. Math. Debr. 89 (3), 355-364, 2016.

Dolinar, G., Kuzma, B., Nagy, G., Szokol, P.: Restricted skew-morphisms on matrix algebras.
Linear Alg. Appl. 490 1-17, 2016.

Molnár, L., Nagy, G.: Spectral Order Automorphisms on Hilbert Space Effects and Observables: The 2-Dimensional Case.
Lett. Math. Phys. 106 (4), 535-544, 2016.

Székelyhidi, L., Vajday, L.: Spectral synthesis on commutative hypergroups.
Annales Univ. Sci. Budapest., Sect. Comp. 45 111-117, 2016.

Gselmann, E., Kelemen, A.: Stability in the class of first order delay differential equations.
Miskolc Math. Notes. 17 (1), 281-291, 2016.

Bessenyei, M.: The contraction principle in extended context.
Publ. Math. Debr. 89 (3), 287-295, 2016.

Daróczy, Z., Maksa, G.: The dilogarithm function and the Abel functional equation.
Publ. Math. Debr. 89 (3), 321-330, 2016.

Száz, Á.: Two Natural Generalizations of Cocycles.
J. Int. Math. Virt. Inst. 6 66-86, 2016.

Gselmann, E.: Additive functions and their actions on certain elementary functions.
Math. Inequal. Appl. 18 (3), 1037-1045, 2015.

Matkowski, J., Páles, Z.: Characterization of generalized quasi-arithmetic means.
Acta Sci. Math. 81 (3-4), 447-456, 2015.

Gilányi, A., Merentes, N., Nikodem, K., Páles, Z.: Characterizations and decomposition of strongly Wright-convex functions of higher order.
Opuscula Math. 35 (1), 37-46, 2015.

Jarczyk, W., Páles, Z.: Convexity and a Stone-type theorem for convex sets in abelian semigroup setting.
Semigr. Forum. 90 (1), 207-219, 2015.

Maksa, G., Páles, Z.: Convexity with respect to families of means.
Aequ. Math. 89 (1), 161-167, 2015.

Boros, Z., Nagy, N.: Generalized Rolewicz theorem for convexity of higher order.
Math. Inequal. Appl. 18 (4), 1275-1281, 2015.

Nagy, G.: Isometries of the spaces of self-adjoint traceless operators.
Linear Alg. Appl. 484 1-12, 2015.

Gselmann, E.: Jordan triple mappings on positive definite matrices.
Aequ. Math. 89 (3), 629-639, 2015.

Gselmann, E.: On a discrete version of the wave equation.
Aequ. Math. 89 (1), 63-70, 2015.

Gilányi, A., Merentes, N., Nikodem, K., Páles, Z.: On higher-order convex functions with a modulus.
Grazer Math. Ber. 363 66-74, 2015.

Szokol, P., Tsai, M., Zhang, J.: Preserving problems of geodesic-affine maps and related topics on positive definite matrices.
Linear Alg. Appl. 483 293-308, 2015.

Lovas, R., Mező, I.: Some observations on the Furstenberg topological space.
Elem. Math. 70 (3), 103-116, 2015.

Molnár, L., Szokol, P.: Transformations on positive definite matrices preserving generalized distance measures.
Linear Alg. Appl. 466 141-159, 2015.

Molnár, L., Szokol, P.: Transformations Preserving Norms of Means of Positive Operators and Nonnegative Functions.
Integr. Equ. Oper. Theory. 83 (2), 271-290, 2015.

Molnár, L.: Two characterizations of unitary-antiunitary similarity transformations of positive definite operators on a finite dimensional Hilbert space.
Ann. Univ. Sci. Bp. Rolando Eötvös Nomin., Sect. comput. 58 83-93, 2015.

Gselmann, E.: Approximate derivations of order n.
Acta Math. Hung. 144 (1), 217-226, 2014.

González, C., Nikodem, K., Páles, Z., Roa, G.: Bernstein-Doetsch type theorems for set-valued maps of strongly and approximately convex and concave type.
Publ. Math.-Debr. 84 (1-2), 229-252, 2014.

Glavosits, T., Száz, Á.: Contructions and extensions of free and controlled additive relations.
In: Handbook of functional equations. Ed.: Themistocles M Rassias, Springer Science+Business Media, New York, 161-208, 2014. ISBN: 9781493912452

Glavosits, T., Száz, Á.: Divisible and cancellable subsets of groupoids.
Ann. Math. Inform. 43 67-91, 2014.

Molnár, L., Szokol, P.: Kolmogorov-Smirnov isometries of the space of generalized distribution functions.
Math. Slovaca. 64 (2), 433-444, 2014.

Kandil, A., El-Tantawy, O., El-Sheikh, S., Zakaria, A.: New structures of proximity spaces.
Inf. Sci. Lett. 3 (2), 85-89, 2014.

Gselmann, E., Maksa, G.: Some Functional Equations Related to the Characterizations of Information Measures and Their Stability.
In: Handbook of Functional Equations. Ed.: Themistocles M. Rassias, Springer, New York, 199-241, 2014. ISBN: 9781493912858

Gselmann, E.: Stability properties in some classes of second order partial differential equations.
Results Math. 65 (1-2), 95-103, 2014.

Székelyhidi, L.: A characterization of exponential polynomials.
Publ. Math.-Debr. 83 (4), 757-771, 2013.

Botelho, F., Jamison, J., Molnár, L.: Algebraic reflexivity of isometry groups and automorphism groups of some operator structures.
J. Math. Anal. Appl. 408 (1), 177-195, 2013.

Száz, Á.: An easy to remember, economic approach to the Riccati equation.
Math. stud. 82 1-12, 2013.

Száz, Á.: An extension of an additive selection theorem of Z. Gajda and R. Ger to vector relator spaces.
Sci. Ser. A. Math. Sci. 24 33-54, 2013.

Száz, Á.: An instructive treatment and some natural extensions of a set-valued function of Páles.
Math. Pannon. 24 (1), 77-108, 2013.

Makó, J., Páles, Z.: Approximate Hermite-Hadamard type inequalities for approximately convex functions.
Math. Inequal. Appl. 16 (2), 507-526, 2013.

Boros, Z., Nagy, N.: Approximately convex functions.
Annales Univ. Sci. Budapest., Sect. Comp. 40 143-150, 2013.

Dolinar, G., Molnár, L.: Automorphisms for the logarithmic product of positive semidefinite operators.
Linear Multilinear Algebra. 61 (2), 161-169, 2013.

Lajkó, K., Mészáros, F., Pap, G.: Characterization of bivariate distributions with conditionals of the same type.
Annales Univ. Sci. Budapest., Sect. Comp. 41 73-84, 2013.

Szilasi, J., Lovas, R., Kertész, D.: Connections, sprays and Finsler structures.
World Scientific Publishing Co., Hackensack, NJ, 709 p., 2013. ISBN: 9789814440097

Bessenyei, M., Szokol, P.: Convex separation by regular pairs.
J. Geom. 104 (1), 45-56, 2013.

Gselmann, E.: Derivations and linear functions along rational functions.
Monatsh. Math. 169 (3-4), 2013.

Székelyhidi, L.: Exponential polynomials on commutative hypergroups.
Arch. Math. 101 (4), 341-347, 2013.

Székelyhidi, L.: Functional Equations on Hypergroups.
World Scientific, Singapore ;, xvii, 191 p., 2013. ISBN: 9789814407007

Lajkó, K., Mészáros, F.: General solution of a functional equation arisen from characterization problems.
Annales Univ. Sci. Budapest., Sect. Comp. 39 291-302, 2013.

Száz, Á.: Inclusions for compositions and box products of relations.
J. Int. Math. Virt. Inst. 3 97-125, 2013.

Nagy, G.: Isometries on positive operators of unit norm.
Publ. Math.-Debr. 82 (1), 183-192, 2013.

Páles, Z., Petre, I.: Iterative fixed point theorems in E-metric spaces.
Acta Math. Hung. 140 (1-2), 2013.

Molnár, L.: Jordan triple endomorphisms and isometries of unitary groups.
Linear Alg. Appl. 439 (11), 3518-3531, 2013.

Páles, Z., Székelyhidi, L.: Laudation to Zoltán Daróczy.
Annales Univ. Sci. Budapest., Sect. Comp. 40 9-20, 2013.

Száz, Á.: Lower semicontinuity properties of relations in relator spaces.
Adv. Stud. Contemp. Math. 23 107-158, 2013.

Molnár, L., Nagy, G., Szokol, P.: Maps on density operators preserving quantum f -divergences.
Quantum Inf Process. 12 (7), 2309-2323, 2013.

Maksa, G.: On additive functions which differentiate elementary functions in some sense.
Annales Univ. Sci. Budapest., Sect. Comp. 41 125-136, 2013.

Daróczy, Z., Páles, Z.: On an elementary inclusion problem and generalized weighted quasi-arithmetic means.
Banach Cent. publ. 99 45-54, 2013.

Makó, J., Páles, Z.: On approximately convex Takagi type functions.
Proc. Amer. Math. Soc. 141 (6), 2069-2080, 2013.

Székelyhidi, L., Vajday, L.: On conditional functional equations with applications on hypergroups.
Annales Univ. Sci. Budapest., Sect. Comp. 41 323-332, 2013.

Gselmann, E.: On some classes of partial difference equations.
Annales Univ. Sci. Budapest., Sect. Comp. 40 285-294, 2013.

Páles, Z.: On Wright- but not Jensen-convex functions of higher order.
Annales Univ. Sci. Budapest., Sect. Comp. 41 227-234, 2013.

Chmieliński, K., Ger, R., Páles, Z., Zdun, M., Brzdȩk, J.: Recent developments in functional equations and inequalities.
Polish Academy of Sciences, Institute of Mathematics, Warsawa, 215 p., 2013. ISBN: 9788386806188

Bessenyei, M., Szokol, P.: Separation by convex interpolation families.
J. Convex Anal. 20 (4), 937-946, 2013.

Bessenyei, M., Kézi, C.: Solving functional equations via finite substitutions.
Aequ. Math. 85 (3), 593-600, 2013.

Baják, S., Páles, Z.: Solving invariance equations involving homogeneous means with the help of computer.
Appl. Math. Comput. 219 (11), 6297-6315, 2013.

Székelyhidi, L.: Spectral synthesis problems on hypergroups.
Annales Univ. Sci. Budapest., Sect. Comp. 39 439-447, 2013.

Gselmann, E.: Stability and information functions.
Scholars' Press, Saarbrücken, 96 p., 2013. ISBN: 9783639705546

Botelho, F., Jamison, J., Molnár, L.: Surjective isometries on Grassmann spaces.
J. Funct. Anal. 265 (10), 2226-2238, 2013.

Székelyhidi, L.: The Levi-Civita equation, vector modules and spectral synthesis.
In: Recent Developments in Functional Equations and Inequalities. Ed.: Janusz Brzdęk, Jacek Chmieliński, Krzysztof Ciepliński, Roman Ger, Zsolt Páles, Marek Cezary Zdun, Banach Center Publications, Warsaw, 193-206, 2013, (Banach Center Publications, ISSN 0137-6934 ; 99.) ISBN: 9788386806188

Száz, Á.: A common generalization of the postman, radial and river metrics.
Rostock. Math. Kolloq. 67 89-125, 2012.

Székelyhidi, L., Vajday, L.: A moment problem on some types of hypergroups.
Ann. Funct. Anal. 3 (2), 58-65, 2012.

Száz, Á.: An instructive treatment of convergence, closure, and orthogonality in semi-inner product spaces.
University of Debrecen, Institute of Mathematics and Informatics, Debrecen, 29 p., 2012.

Fazekas, B.: Computer-assisted enclosures for fourth order elliptic equations.
Südwestdeutscher Verlag für Hochschulschriften, Saarbrücken, 145 p., 2012. ISBN: 9783838118345

Szilasi, J., Tóth, A.: Curvature collineations in spray manifolds.
Balk. J. Geom. Appl. 17 (2), 104-114, 2012.

Bessenyei, M., Horváth, G., Kézi, C.: Functional equations on finite groups of substitutions.
Expo. Math. 30 (3), 283-294, 2012.

Székelyhidi, L., Vajday, L.: Functional equations on the SU(2)-hypergroup.
Math. Pannon. 23 (2), 187-193, 2012.

Száz, Á.: Galois-type connections and continuities of pairs of relations.
J. Int. Math. Virt. Inst. 2 39-66, 2012.

Wlodzimierz, F., Gselmann, E.: General and alien solutions of a functional equation and of a functional inequality.
Publ. Math.-Debr. 80 (1-2), 143-154, 2012.

Páles, Z., Makó, J.: Implications between approximate convexity properties and approximate Hermite-Hadamard inequalities.
Cent. Eur. J. Math. 10 (3), 1017-1041, 2012.

Hatori, O., Hirasawa, G., Miura, T., Molnár, L.: Isometries and maps compatible with inverted Jordan triple products on groups.
Tokyo j. math. 35 (2), 385-410, 2012.

Molnár, L., Nagy, G.: Isometries and relative entropy preserving maps on density operators.
Linear Multilinear Algebra. 60 (1), 93-108, 2012.

Hatori, O., Molnár, L.: Isometries of the unitary group.
Proc. Amer. Math. Soc. 140 (6), 2127-2140, 2012.

Makó, J., Páles, Z.: Korovkin type theorems and approximate Hermite-Hadamard inequalities.
J. Approx. Theory. 164 (8), 1111-1142, 2012.

Lajkó, K., Mészáros, F.: Multiplicative type functional equations arising from characterization problems.
Aequ. Math. 83 (3), 199-208, 2012.

Székelyhidi, L.: Noetherian rings of polynomial functions on Abelian groups.
Aequ. Math. 84 (1-2), 41-50, 2012.

Gselmann, E.: Notes on the characterization of derivations.
Acta Sci. Math. 78 (1-2), 137-145, 2012.

Makó, J., Páles, Z.: On [varphi]-convexity.
Publ. Math.-Debr. 80 (1-2), 107-126, 2012.

Járai, A., Lajkó, K., Mészáros, F.: On measurable functions satisfying multiplicative type functional equations almost everywhere.
In: Inequalities and Applications 2010. Ed.: Catherine Bandle, Attila Gilányi, László Losonczi, Michael Plum, Birkhäuser, Basel, 241-253, 2012. ISBN: 9783034802482

Makó, J., Nikodem, K., Páles, Z.: On strong ([alpha],F)-convexity.
Math. Inequal. Appl. 15 (2), 289-299, 2012.

Székelyhidi, L.: Polynomial functions and spectral synthesis on Abelian groups.
Banach J. Math. Anal. 6 (1), 124-131, 2012.

Bessenyei, M., Páles, Z.: Separation by linear interpolation families.
J. nonlinear convex anal. 13 (1), 49-56, 2012.

Dolinar, G., Molnár, L.: Sequential endomorphisms of finite-dimensional Hilbert space effect algebras.
J. Phys. A-Math. Theor. 45 (6), 11, 2012.

Székelyhidi, L., Vajday, L.: Spectral analysis and moment functions.
J. Inform. Math. Sci. 4 (2), 185-188, 2012.

Székelyhidi, L.: Spectral analysis and spectral synthesis.
In: Nonlinear analysis : Stability, Approximation, and Inequalities. Eds.: Panos M. Pardalos, Pando G. Georgiev. Hari M. Srivastava, Springer, New York, 707-719, 2012. ISBN: 9781461434979

Száz, Á.: The Hyers-Ulam and Hahn-Banach theorems and some elementary operations on relations motivated by their set-valued generalizations.
In: Nonlinear Analysis : Stability, Approximation, and Inequalities. Ed.: P. M. Pardalos, P. G. Georgiev, H. M. Srivastava, Springer, New York, 631-705, 2012, (Springer Optimization and Its Applications ; 68.) ISBN: 9781461434979

Molnár, L., Šemrl, P.: Transformations of the unitary group on a Hilbert space.
J. Math. Anal. Appl. 388 (2), 1205-1217, 2012.

Maksa, G., Páles, Z.: Wigner's theorem revisited.
Publ. Math.-Debr. 81 (1-2), 243-249, 2012.

Gselmann, E., Maksa, G.: A characterization of the relative entropies.
Annales Univ. Sci. Budapest., Sect. Comp. 35 151-162, 2011.

Brzdȩk, J., Chudziak, J., Páles, Z.: A fixed point approach to stability of functional equations.
Nonlinear Anal. 74 (17), 6728-6732, 2011.

Glavosits, T., Száz, Á.: A Hahn-Banach type generalization of the Hyers-Ulam theorem.
An. Şt. Univ. Ovidius Constanţa, Ser. Mat. 19 (1), 139-144, 2011.

Daróczy, Z.: Antal Járai has turned 60.
Annales Univ. Sci. Budapest., Sect. Comp. 35 11-12, 2011.

Nikodem, K., Páles, Z.: Characterizations of inner product spaces by strongly convex functions.
Banach J. Math. Anal. 5 (1), 83-87, 2011.

Csabay, K., Daragó, J.: Combinatorics Teaching Experiment.
Teach. Math. Comp. Sci. 9 (1), 27-44, 2011.

Molnár, L.: Continuous maps on matrices transforming geometric mean to arithmetic mean.
Annales Univ. Sci. Budapest., Sect. Comp. 35 217-222, 2011.

Gselmann, E.: Entropy functions and functional equations.
Math. commun. 16 (2), 347-357, 2011.

Losonczi, L., Páles, Z.: Equality of two-variable functional means generated by different measures.
Aequ. Math. 81 (1-2), 31-53, 2011.

Székelyhidi, L.: Fourier transform for mean periodic functi.
Ann. Univ. Sci. Budapest. Sect. Comput. 35 267-284, 2011.

Mészáros, F., Lajkó, K.: Functional equations and characterization problems.
VDM Verlag Dr. Müller, Saarbrücken, 107 p., 2011. ISBN: 9783639309140

Bessenyei, M., Kézi, C.: Functional equations and group substitutions.
Linear Alg. Appl. 434 (6), 1525-1531, 2011.

Molnár, L., Molnár, L.: Kolmogorov-Smirnov isometries and affine automorphisms of spaces of distribution functions.
Cent. Eur. J. Math. 9 (4), 789-796, 2011.

Molnár, L.: Lévy isometries of the space of probability distribution functions.
J. Math. Anal. Appl. 380 (2), 847-852, 2011.

Losonczi, L., Páles, Z.: Minkowski-type inequalities for means generated by two functions and a measure.
Publ. Math. 78 (3-4), 743-753, 2011.

Glavosits, T., Kézi, C.: On the domain of oddness of an infimal convolution.
Miskolc. Math. Notes. 12 (1), 31-40, 2011.

Daróczy, Z.: On the equality and comparison problem of a class of mean values.
Aequ. Math. 81 (3), 201-208, 2011.

Páles, Z.: On the equality of quasi-arithmetic means and Lagrangian means.
J. Math. Anal. Appl. 382 (1), 86-96, 2011.

Molnár, L.: Order automorphisms on positive definite operators and a few applications.
Linear Alg. Appl. 434 (10), 2158-2169, 2011.

Száz, Á.: Sets and posets with inversions.
Publ. Inst. Math. (Belgr.). 90 (104), 111-123, 2011.

Száz, Á.: Set theoretic operations on box and totalization relations.
Int. j. math. sci. appl. 1 (1), 19-41, 2011.

Szilasi, J., Lovas, R., Kertész, D.: Several ways to a Berwald manifold and some steps beyond.
Extr. Math. 26 (1), 89-130, 2011.

Makó, J., Páles, Z.: Strengthening of strong and approximate convexity.
Acta Math. Hung. 132 (1-2), 78-91, 2011.

Maksa, G., Páles, Z.: The equality case in some recent convexity inequalities.
Opuscula math. 31 (2), 273-281, 2011.

Glavosits, T., Száz, Á.: The generalized infimal convolution can be used naturally prove some dominated monotone additive extension theorems.
Ann. Math. Sil. 25 67-100, 2011.

Molnár, L., Timmermann, W.: Transformations on Bounded Observables Preserving Measure of Compatibility.
Int. J. Theor. Phys. 50 (12), 3857-3863, 2011.

Páles, Z., Zeidan, V.: V-Jacobian and V-co-Jacobian for Lipschitzian maps.
Discret. Contin. Dyn. Syst. 29 (2), 623-646, 2011.

Mészáros, F.: A functional equation and its application to the characterization of gamma distributions.
Aequ. Math. 79 (1-2), 53-59, 2010.

Glavosits, T., Kézi, C.: A Hahn-Banach féle kiterjesztés egyértelműségének karakterizációja infimális konvolúció alkalmazásával.
In: Bolyai János Emlékkonferencia halálának 150. évfordulója alkalmából. Szerk.: PE MIK, Bolyai János Emlékkonferencia Szerkesztő és Program Bizottsága, Marosvásárhely ; Budapest, 39, 2010.

Száz, Á.: An Altman type generalizations of ordering and maximality principles of the Brézis, Browder and Brøndsted.
Adv. Stud. Contemp. Math. 20 595-620, 2010.

Gselmann, E., Száz, Á.: An instructive treatment of a generalization of Găvruţă's stability theorem.
Sarajevo j. math. 6 (18), 3-21, 2010.

Makó, J., Páles, Z.: Approximate convexity of Takagi type functions?.
J. Math. Anal. Appl. 369 (2), 545-554, 2010.

Száz, Á.: A relational reformulation of the Phelps-Cardwell lemma.
University of Debrecen, Institute of Mathematics, Debrecen, 13 p., 2010.

Bessenyei, M., Páles, Z.: Characterization of higher-order monotonicity via integral inequalities.
Proc. R. Soc. Edinb. Sect. A-Math. 140 (04), 723-736, 2010.

Páles, Z., Zeidan, V.: Co-Jacobian for Lipschitzian Maps.
Set-Valued Anal. 18 (1), 57-78, 2010.

Baják, S., Páles, Z.: Computer aided solution of the invariance equation for two-variable Stolarsky means.
Appl. Math. Comput. 216 (11), 3219-3227, 2010.

Glavosits, T., Száz, Á.: Constructions and extensions of free and controlled additive relations.
University of Debrecen, Institute of Mathematics, Debrecen, 49 p., 2010.

Vajday, L.: Exponential monomials on Sturm-Liouville hypergroups.
Banach J. Math. Anal. 4 (2), 139-146, 2010.

Száz, Á.: Foundations of the theory of vector relators.
Adv. Stud. Contemp. Math. 20 139-195, 2010.

Bessenyei, M.: Functional Equations and Finite Groups of Substitutions.
Am. Math. Mon. 117 (10), 921-927, 2010.

Figula, Á., Száz, Á.: Graphical relationships between the infimum and intersection convolutions.
Math. Pannon. 21 (1), 23-35, 2010.

Lovas, R., Szilasi, J.: Homotheties of Finsler manifolds.
SUT J. Math. 46 (1), 23-34, 2010.

Csabay, K., Daragó, J.: How long is the diagonal of a square?.
In: New trends in humanities and science in the Eastern European Region / Stanisaw Lipinski, Academy of professional development and re-training of educators, Moszkva, 59-78, 2010. ISBN: 978584296179

Boros, Z., Gselmann, E.: Hyers-Ulam stability of derivations and linear functions.
Aequ. Math. 80 (1-2), 13-25, 2010.

Száz, Á.: Inclusions on box and totalization relations.
University of Debrecen, Institute of Mathematics, Debrecen, 8 p., 2010.

Molnár, L.: Linear maps on observables in von Neumann algebras preserving the maximal deviation.
J. Lond. Math. Soc.-Second Ser. 81 (1), 161-174, 2010.

Molnár, L., Szokol, P.: Maps on states preserving the relative entropy II.
Linear Alg. Appl. 432 (12), 3343-3350, 2010.

Nikodem, K., Páles, Z.: Minkowski sums of Cantor-type sets.
Colloq. Math. 119 (1), 95-108, 2010.

Daróczy, Z., Dascǎl, J.: On the Equality Problem of Conjugate Means.
Results. Math. 58 (1-2), 69-79, 2010.

Gselmann, E.: On the Stability of the Modified Entropy Equation.
Results. Math. 58 (3-4), 255-268, 2010.

Száz, Á.: Relation theoretic operations on box and totalization relations.
University of Debrecen, Institute of Mathematics, Debrecen, 22 p., 2010.

Maksa, G., Páles, Z.: Remarks on the comparison of weighted quasi-arithmetic means.
Colloq. Math. 120 (1), 77-84, 2010.

Száz, Á.: Set theoretic operations on box and totalization relations.
University of Debrecen, Institute of Mathematics, Debrecen, 8 p., 2010.

Székelyhidi, L., Vajday, L.: Spectral analysis on commutative hypergroups.
Aequ. Math 80 (1-2), 223-226, 2010.

Székelyhidi, L.: Spectral synthesis problems on locally compact groups.
Monatsh. Math. 161 (2), 223-232, 2010.

Gselmann, E.: Stability of the entropy equation.
Publ. Math.-Debr. 77 (1-2), 201-210, 2010.

Maksa, G., Varga, A.: The equivalence of two functional equations involving the arithmetic mean, the geometric mean and their Gauss composition.
Aequ. Math. 80 (1-2), 173-179, 2010.

Glavosits, T., Száz, Á.: The generalized infimal convolution can be used to naturally prove some dominated monotone additive extension theorems.
University of Debrecen, Institute of Mathematics, Debrecen, 26 p., 2010.

Bessenyei, M.: The Hermite-Hadamard inequality in Beckenbach's setting?.
J. Math. Anal. Appl. 364 (2), 366-383, 2010.

Száz, Á.: The infimal convolution can be used to derive extension theorems from the sandwich ones.
Acta Sci. Math. 76 (3-4), 489-499, 2010.

Glavosits, T., Száz, Á.: The infimal convolution can be used to easily prove the classical Hahn-Banach theorem.
Rostock. Math. Kolloq. 65 71-83, 2010.

Száz, Á.: The intersection convolution of relations.
Creat. math. inform. 19 (2), 209-217, 2010.

Daróczy, Z., Páles, Z.: A characterization of nonconvexity and its applications in the theory of quasi-arithmetic means.
In: Inequalities and Applications : Conference on Inequalities and Applications, Noszvaj (Hungary), September 2007. Eds.: Catherine Bandle, László Losonczi, Attila Gilányi, Zsolt Páles and Michael Plum, Birkhauser Verlag, Basel, 251-260, 2009, (International Series of Numerical Mathematics ; 157.)

Mészáros, F.: A functional equation related to characterization problems.
Math. Pannon. 20 (1), 129-138, 2009.

Molnár, L., Timmermann, W.: A metric on the space of projections admitting nice isometries.
Studia Math. 191 (3), 271-281, 2009.

Buglyó, S., Száz, Á.: A more important Galois connection between distance functions and inequality relations.
Sci. Ser. A. Math. Sci. 18 17-38, 2009.

Száz, Á.: Applications of relations and relators in the extensions of stability theorems for homogeneous and additive functions.
Aust. J. Math. Anal. Appl. 6 (1), 1-66, 2009.

Nagy, G.: Commutativity preserving maps on quantum states.
Rep. Math. Phys. 63 (3), 447-464, 2009.

Baják, S., Páles, Z.: Computer aided solution of the invariance equation for two-variable Gini means.
Comput. Math. Appl. 58 (2), 334-340, 2009.

Fazekas, G., Mahdi, E.: Feature selection as an improving step for decision tree construction.
In: Proceedings of the 2009 International Conference on Machine Learning and Computing (ICMLC 2009) July 10-12, 2009, Perth, Australia. Ed.: Venkatesh Mahadevan, World Academic Union, Liverpool, 35-39, 2009.

Lajkó, K., Mészáros, F.: Functional equations arisen from the characterization of beta distributions.
Aequ. Math. 78 (1-2), 87-99, 2009.

Lajkó, K., Mészáros, F.: Functional equations stemming from probability theory.
Tatra Mt. Math. Publ. 44 65-80, 2009.

Száz, Á.: Galois-type connections and closure operations on preordered sets.
Acta Math. Univ. Commen. 78 (1), 1-21, 2009.

Gselmann, E.: Hyperstability of a functional equation.
Acta Math. Hung. 124 (1-2), 179-188, 2009.

Dascǎl, J., Száz, Á.: Inclusion properties of the intersection convolution of relations.
Ann. Math. et Inf. 36 47-60, 2009.

Bandle, C., Gilányi, A., Losonczi, L., Páles, Z., Plum, M.: Inequalities and Applications: Conference on Inequalities and Applications, Noszvaj (Hungary), September 2007.
Birkhauser Verlag, Basel ;, XLVIII, 315 p., 2009. ISBN: 9783764387723

Baják, S., Páles, Z.: Invariance equation for generalized quasi-arithmetic means.
Aequ. Math. 77 (1-2), 133-145, 2009.

Molnár, L.: Linear maps on matrices preserving commutativity up to a factor.
Linear and Multilinear Algebra. 57 (1), 13-18, 2009.

Molnár, L., Timmermann, W.: Maps on quantum states preserving the Jensen-Shannon divergence.
J. Phys. A. Math. Theor. 42 (1), 015301, 9, 2009.

Molnár, L.: Maps preserving the geometric mean of positive operators.
Proc. Amer. Math. Soc. 137 (5), 1763-1770, 2009.

Molnár, L.: Maps preserving the harmonic mean or the parallel sum of positive operators.
Linear Alg. Appl. 430 (11-12), 3058-3065, 2009.

Daróczy, Z.: Mean values and functional equations.
Diff. Equations Dynamical Syst. 17 (1-2), 105-113, 2009.

Házy, A., Páles, Z.: On a certain stability of the Hermite-Hadamard inequality.
Proc. R. Soc. Lond. A Math. Phys. Sci. 465 571-583, 2009.

Varga, A., Vincze, C.: On a functional equation containing weighted arithmetic means.
In: Inequalities and Applications : Conference on inequalities and applications '07. Ed.: C. Bandle, A. Gilányi, L. Losonczi, M. Plum, Zs. Páles, Birkhauser Verlag, Basel, 305-315, 2009, (International Series of Numerical Mathematics ; 157.) - ISBN: 9783764387723

Dascǎl, J.: On a functional equation with a symmetric component.
Publ. Math. Debrecen. 75 (1-2), 33-39, 2009.

Lajkó, K., Maksa, G., Mészáros, F.: On a generalized Hosszú functional equation.
Publ. Math. Debrecen. 74 (1-2), 101-106, 2009.

Varga, A., Vincze, C.: On Daróczy's problem for additive functions.
Publ. Math.-Debr. 75 (1-2), 299-310, 2009.

Daróczy, Z., Dascǎl, J.: On the general solution of a family of functional equations with two parameters and its application.
Math. Pannon. 20 (1), 27-36, 2009.

Gselmann, E.: Recent results on the stability of the parametric fundamental equation of information.
Acta Math. Acad. Paedagog. Nyíregyh. 25 (1), 65-84, 2009.

Száz, Á.: Relationships between the intersection convolution and other important operations on relations.
Math. Pannon. 20 (1), 99-107, 2009.

Lajkó, K., Mészáros, F.: Some new functional equations connected with characterization problems.
Acta Math. Acad. Paedagog. Nyíregyh. 25 (2), 221-239, 2009.

Gselmann, E., Maksa, G.: Stability of the parametric fundamental equation of information for nonpositive parameters.
Aequ. Math. 78 (3), 271-282, 2009.

Gselmann, E.: Stability type results concerning the fundamental equation of information of multiplicative type.
Coll. Math. 114 (1), 33-40, 2009.

Nyul, B.: Termelési függvények és jellemzéseik.
Alkalm. mat. l. 26 (2), 351-363, 2009.

Páles, Z., Zeidan, V.: The core of the infinite dimensional generalized Jacobian.
J. Convex Anal. 16 (2), 321-349, 2009.

Makó, Z., Páles, Z.: The invariance of the arithmetic mean with respect to generalized quasi-arithmetic means.
J. Math. Anal. Appl. 353 (1), 8-23, 2009.

Gselmann, E., Maksa, G.: The Shannon field of non-negative information functions.
Sci. Math. Jap. Online. 69 (2), 241-248, 2009.

Molnár, L.: Thompson isometries of the space of invertible positive operators.
Proc. Amer. Math. Soc. 137 (11), 3849-3859, 2009.

Maksa, G., Mészáros, F.: A characterization of the exponential distribution through functional equations.
In: Inequalities and Applications. Ed.: C. Bandle, A. Gilányi, L. Losonczi, M. Plum, Zs. Páles, Birkhauser Verlag, Basel, 291-298, 2008.

Boros, Z.: An inequality for the Takagi function.
Math. Inequal. Appl. 11 (4), 757-765, 2008.

Száz, Á.: An instructive treatment of a generalization of Hyers's stability theorem.
In: Inequalities and Applications / Th. M. Rassias, A. Andrica (eds.), Cluj University Press, Cluj-Napoca, 245-271, 2008.

Losonczi, L., Páles, Z.: Comparison of means generated by two functions and a measure.
J. Math. Anal. Appl. 345 (1), 135-146, 2008.

Abbas, A., Gselmann, E., Maksa, G., Sun, Z.: General and continuous solutions of the entropy equation.
In: Proceedings of the 28th International Workshop on Bayesian Inference and Maximum Entropy Methods in Science and Engineering, American Institute of Physics, Melville, NY, 3-7, 2008, (AIP conference proceedings ; 1073)

Bessenyei, M.: Hermite-Hadamard inequality on simplices.
Am. Math. Mon. 115 (4), 339-345, 2008.

Bessenyei, M.: Hermite-Hadamard-type inequalities for generalized convex functions.
J. Inequal. Pure Appl. Math. 9 (3), 1-51, 2008.

Boros, Z., Száz, Á.: Infimum and supremum completeness properties of ordered sets without axioms.
An. St. Univ. Ovidius Constanta, Ser. Mat. 16 (2), 31-37, 2008.

Molnár, L.: Maps on states preserving the relative entropy.
J. math. phys. 49 (3), 1-4, 2008.

Molnár, L.: Maps on the n-dimensional subspaces of a Hilbert space preserving principal angles.
Proc. Amer. Math. Soc. 136 (9), 3205-3209, 2008.

Orosz, Á., Székelyhidi, L.: Moment functions on Sturm-Liouville hypergroups.
Annales Univ. Sci. Sec. Comp. 29 141-156, 2008.

Nikodem, K., Páles, Z.: Note on t-quasiaffine functions.
Annales Univ. Sci. Sec. Comp. 29 127-139, 2008.

Daróczy, Z.: On a family of functional equations with one parameter.
Annales Univ. Sci. Sec. Comp. 28 175-181, 2008.

Varga, A.: On a functional equation containing four weighted arithmetic means.
Banach J. Math. Anal. 2 (1), 21-32, 2008.

Varga, A., Vincze, C.: On a lower and upper bound for the curvature of ellipses with more than two foci.
Expo. math. 26 (1), 55-77, 2008.

Gilányi, A., Páles, Z.: On convex and Wright-convex functions of higher order.
Math. Inequal. Appl. 11 (2), 271-282, 2008.

Gilányi, A., Páles, Z.: On convex functions of higher order.
Math. Inequal. Appl. 11 (2), 271-282, 2008.

Páles, Z.: On functional equations characterizing polynomials.
Acta Sci. Math. 74 581-592, 2008.

Daróczy, Z., Laczkovich, M.: On functions taking the same value on many pairs of points.
Real Anal. Exchange. 33 (2), 385-393, 2008.

Makó, Z., Páles, Z.: On the equality of generalized quasiarithmetic means.
Publ. Math. Debrecen. 72 (3-4), 407-440, 2008.

Gselmann, E.: On the modified entropy equation.
Banach J. Math. Anal. 2 (1), 84-96, 2008.

Nyakóné Juhász, K., Kósa, M., Pánovics, J., Lajkó, K.: Öt éves múlt a TMCS.
In: Informatika a felsőoktatásban 2008 : konferencia kiadvány : Debrecen, 2008 augusztus 27-29. : Előadás-összefoglalók és teljes előadást tartalmazó CD-melléklet [elektronikus dokumentum]. Szerk.: Pethő Attila, Herdon Miklós, Debreceni Egyetem TEK Informatikai Kar, Debrecen, [6 ], 2008.

Boros, Z., Száz, Á.: Reflexivity, transitivity, symmetry and anti-symmetry of the intersection convolution of relations.
Rostock. Math. Kolloq. 63 55-62, 2008.

Székelyhidi, L.: Spectral synthesis on multivariate polynomial hypergroups.
Monatsh. Math. 153 (2), 145-152, 2008.

Száz, Á.: An improved Altman type generalization of the Brezis-Browder ordering principle.
Math. commun. 12 155-161, 2007.

Lovas, R.: A note on Finsler-Minkowski norms.
Houst. J. Math. 33 (3), 701-707, 2007.

Lakatos, P., Losonczi, L.: Circular interlacing with reciprocal polynomials.
Math. inequal. appl. 10 (4), 761-769, 2007.

Székelyhidi, L.: D'Alembert's functional equation on compact groups.
Banach J. Math. Anal. 1 (2), 221-226, 2007.

Fazekas, B.: Decision functions and characterization of their properties.
Math. Inequal. Appl. 10 (1), 29-43, 2007.

Gilányi, A., Kaiser, Z., Páles, Z.: Estimates to the stability of functional equations.
Aequ. Math. 73 (1-2), 125-143, 2007.

Páles, Z., Zeidan, V.: First- and second-order optimality conditions for a strong local minimum in control problems with pure state constraints.
Nonlinear anal. 67 (8), 2506-2526, 2007.

Nikodem, K., Páles, Z.: Generalized convexity and separation theorems.
J. Convex Anal. 14 (2), 239-247, 2007.

Páles, Z., Zeidan, V.: Generalized Jacobian for functions with infinite dimensional range and domain.
Set-Valued Analysis. 15 (4), 331-375, 2007.

Losonczi, L.: Homogeneous symmetric means of two variables.
Aequ. Math. 74 (3), 262-281, 2007.

Páles, Z., Zeidan, V.: Infinite dimensional Clarke generalized Jacobian.
J. Convex Anal. 14 (2), 433-454, 2007.

Dolinar, G., Molnár, L.: Maps on quantum observables preserving the Gudder order.
Rep. math. phys. 60 (1), 159-166, 2007.

Száz, Á.: Minimal structures, generalized topologies, and ascending systems should not be studied without generalized uniformities.
Filomat. 21 (1), 87-97, 2007.

Molnár, L., Timmermann, W.: Mixture preserving maps on von Neumann algebra effects.
Lett. math. phys. 79 295-302, 2007.

Bakula, M., Pecaric, J., Páles, Z.: On weighted L-conjugate means.
Commun. Appl. Anal. 11 (1), 65-78, 2007.

Molnár, L.: Selected preserver problems on algebraic structures of linear operators and on function spaces.
Springer-Verlag, Berlin, 232 p., 2007. ISBN: 9783540399445

Losonczi, L., Schinzel, A.: Self-inversive polynomials of odd degree.
Ramanujan J. 14 305-320, 2007.

Száz, Á.: Some easy to remember abstract forms of Ekeland's variational priciple and Caristi's fixed point theorem.
Appl. Anal. Discrete Math. 1 335-339, 2007.

Molnár, L., Šemrl, P.: Spectral order automorphisms of the spaces of Hilbert space effects and observables.
Lett. math. phys. 80 239-255, 2007.

Laczkovich, M., Székelyhidi, L.: Spectral synthesis on discrete Abelian groups.
Math. Proc. Cambridge Phil. Soc. 143 (1), 103-120, 2007.

Ádám, Z., Lajkó, K., Maksa, G., Mészáros, F.: Two functional equations on group.
Ann. Math. Sil. 21 7-13, 2007.

Fink, A., Páles, Z.: What is Hadamard's inequality?.
Appl. Anal. Discrete Math. 1 (1), 29-35, 2007.

Páles, Z.: Abstract control problems with nonsmooth data.
In: Recent advances in optimization / edited by Alberto Seeger, Springer, Heidelberg, 205-216, cop 2006, (Lecture Notes in Economics and Mathematical Systems ; 563.)

Bessenyei, M., Páles, Z.: Characterizations of convexity via Hadamard's inequality.
Math. Inequal. Appl. 9 (1), 53-62, 2006.

Száz, Á., Túri, J.: Comparisons and compositions of Galois-type connections.
Miskolc. math. notes. 7 (2), 189-203, 2006.

Fazekas, B., Plum, M., Wieners, C.: Enclosure for the Biharmonic Equation.
Dagstuhl Seminar Proceedings. 05391 1-5, 2006.

Losonczi, L.: Equality of two variable means revisited.
Aequ. Math. 71 (3), 228-245, 2006.

Daróczy, Z., Maksa, G., Páles, Z.: Functional equations involving means and their Gauss composition.
Proc. Amer. Math. Soc. 134 (2), 521-530, 2006.

Losonczi, L.: On reciprocal polynomials with zeros of modulus one.
Math. inequal. appl. 9 289-298, 2006.

Makó, Z., Páles, Z.: On the Lipschitz perturbation of monotonic functions.
Acta Math. Hung. 113 (1-2), 1-18, 2006.

Boros, Z., Páles, Z.: Q-subdifferential of Jensen-convex functions.
J. Math. Anal. Appl. 321 (1), 99-113, 2006.

Maksa, G., Nizsalóczki, E.: Quasi-sums in several variables.
Acta Math. Acad. Paedag. Nyíregyh. 22 193-207, 2006.

Páles, Z.: Regularity problems and results concerning composite functional equations in several variables.
Tatra Mt. Math. Publ. 34 (2), 289-306, 2006.

Ádám, Z., Lajkó, K., Maksa, G., Mészáros, F.: Sequenced problems for functional equations.
Teach. Math. Comput. Sci. 4 (1), 179-192, 2006.

Czinder, P., Páles, Z.: Some comparison inequalities for Gini and Stolarsky means.
Math. Inequal. Appl. 9 (4), 607-616, 2006.

Száz, Á.: Supremum properties of Galois-type connections.
Comment. math. Univ. Carolinae. 47 (4), 569-583, 2006.

Kaiser, Z., Páles, Z.: An example of a stable functional equation when the Hyers iteration does not work.
J. Inequal. Pure Appl. Math. 6 (1), Article 14,, 2005.

Larsson, L., Páles, Z., Persson, L.: Carlson type inequalities for finite sums and integrals on bounded intervals.
Bull. Austr. Math. Soc. 71 (2), 275-284, 2005.

Burai, P., Száz, Á.: Coincidence theorem for subadditive and superadditive functions.
Carpathian J. of Math. 21 (1-2), 21-26, 2005.

Lovas, R.: Corrigendum to 'On the Killing vector fields of generalized metrics' (in SUT Journal of Mathematics, Vol. 40, No. 2 (2004), 133-156).
SUT J. Math. 41 (1), 95, 2005.

Boros, Z., Száz, Á.: Finite and conditional completeness properties of generalized ordered sets.
Rostock. Math. Kolloq. 59 75-86, 2005.

Glavosits, T., Száz, Á.: General conditions for the subadditivity and superadditivity of relations.
Scientia, Ser. A, Math. Sci. 11 31-43, 2005.

Daróczy, Z., Páles, Z.: Generalized convexity and comparison of mean values.
Acta Sci. Math. 71 (1-2), 105-116, 2005.

Bessenyei, M., Páles, Z.: Hermite-Hadamard inequalities for generalized convex functions.
Aequ. Math. 69 (1-2), 32-40, 2005.

Burai, P., Száz, Á.: Homogeneity properties of subadditive functions.
Ann. Math. Inf. 32 189-201, 2005.

Lovas, R.: Infinitesimal isometries of generalized metrics.
Vest. Nizegorodsk. Univ. im. NI Lob. Ser. Mat. 3 (1), 162-171, 2005.

Glavosits, T.: Karakterizációs problémákból származó függvényegyenletek általános megoldása.
In: XXVII. Országos Tudományos Diákköri Konferencia Fizika, Földtudományok, Matematika Szekció : Eötvös Loránd Tudományegyetem Természettudományi Kar, 2005. március 21-23.. Szerk.: Horváth Ákos, Eötvös Loránd Tudományegyetem, Budapest, [1], 2005. ISBN: 9634637469

Czinder, P., Páles, Z.: Local monotonicity properties of two-variable Gini means and the comparison theorem revisited.
J. Math. Anal. Appl. 301 (2), 427-438, 2005.

Házy, A., Páles, Z.: On approximately t-convex functions.
Publ. Math. 66 (3-4), 489-501, 2005.

Páles, Z.: Optimum problems with nonsmooth equality constraints.
Nonlinear Anal. 63 (5-7), e2575-e2581, 2005.

Burai, P., Száz, Á.: Relationships between homogeneity, subadditivity and convexity properties.
Publikacija Elektrotehnickog fakulteta. Serija Matematika 16 77-87, 2005.

Losonczi, L.: Sub- and superadditive integral means.
J. Math. Anal. Appl. 307 (2), 444-454, 2005.

Glavosits, T., Lajkó, K.: The general solution of a functional equation related to the characterizations of bivariate distributions.
Aequ. Math. 70 (1-2), 88-100, 2005.

Czinder, P., Páles, Z.: An extension of the Hermite-Hadamard inequality and an application for Gini and Stolarsky means.
J. Inequal. Pure Appl. Math. 5 (2), Article 42,, 2004.

Glavosits, T., Száz, Á.: Characterizations of commuting relations.
Acta Math. Inform. Univ. Ostrav. 12 23-31, 2004.

Páles, Z., Zeidan, V.: Critical and critical tangent cones in optimization problems.
Set-Valued Anal. 12 (1-2), 241-258, 2004.

Páles, Z., Persson, L.: Hardy-type inequalities for means.
Bull. Austr. Math. Soc. 70 (3), 521-528, 2004.

Bessenyei, M.: Hermite-Hadamard-type inequalities for generalized 3-convex functions.
Publ. Math.-Debr. 65 (1-2), 223-232, 2004.

Maksa, G., Páles, Z.: On a composite functional equation arising in utility theory.
Publ. Math. 65 (1/2), 215-220, 2004.

Házy, A., Páles, Z.: On approximately midconvex functions.
Bull. London Math. Soc. 36 (3), 339-350, 2004.

Páles, Z., Székelyhidi, L.: On approximate sandwich and decomposition theorems.
Ann. Univ. Sci. Budapest. Sect. Comput. 23 59-70, 2004.

Járai, A., Maksa, G., Páles, Z.: On Cauchy-differences that are also quasisums.
Publ. Math. 65 (3/4), 381-398, 2004.

Bessenyei, M., Páles, Z.: On generalized higher-order convexity and Hermite-Hadamard-type inequalities.
Acta Sci. Math. 70 (1-2), 13-24, 2004.

Glavosits, T., Száz, Á.: On the existence of nonnegativity domains of subsets of groups.
Demonstr. Math. 37 505-516, 2004.

Glavosits, T., Száz, Á.: On the existence of odd selections.
Adv. Stud. Contemp. Math. 8 155-164, 2004.

Lovas, R.: On the Killing vector fields of generalized metrics.
SUT J. Math. 40 (2), 133-156, 2004.

Daróczy, Z., Maksa, G., Páles, Z.: On two-variable means with variable weights.
Aequ. Math. 67 (1-2), 154-159, 2004.

Glavosits, T., Száz, Á.: Pointwise and global sums and negatives of translation relations.
An. Şt. Univ. Ovidius Constanţa, Ser. Mat. 12 27-44, 2004.

Száz, Á.: Rare and meager sets in relator spaces.
Tatra Mt. Math. Publ. 28 75-95, 2004.

Lakatos, P., Losonczi, L.: Self-inversive polynomials with zeros on the unit circle.
Publ. Math. Debrecen. 65 409-420, 2004.

Páles, Z., Zeidan, V.: Strong local optimality conditions for state constrained control problems.
J. Global Optim. 28 (3-4), 363-377, 2004.

Badora, R., Ger, R., Páles, Z.: Additive selections and the stability of the Cauchy functional equation.
ANZIAM j. 44 (3), 323-337, 2003.

Száz, Á.: An extension of Baire's category theorem to relator spaces.
Math. Morav. 7 73-89, 2003.

Páles, Z.: A regularity theorem for composite functional equations.
Acta Sci. Math. 69 591-604, 2003.

Pataki, G., Száz, Á.: A unified treatment of well-chainedness and connectedness properties.
Acta Math. Acad. Paedagog. Nyíregyh. 19 101-165, 2003.

Glavosits, T., Száz, Á.: Decompositions of commuting relations.
Acta Math. Inform. Univ. Ostrav. 11 (1), 25-28, 2003.

Losonczi, L.: Equality of two variable Cauchy mean values.
Aequ. Math. 65 (1-2), 61-81, 2003.

Glavosits, T.: Függvényegyenletek megoldása iterációval.
In: XXVI. Országos Tudományos Diákköri Konferencia : Fizika, Földtudományok és Matematika Szekció : 2003. április 14-16., Miskolc-Egyetemváros. Szerk.: Dobróka Mihály, Mádai Ferenc, Gyulai Ákos, Miskolci Egyetemi Kiadó, Miskolc, 173, 2003. ISBN: 9636615683

Bessenyei, M., Páles, Z.: Hadamard-type inequalities for generalized convex functions.
Math. Inequal. Appl. 6 (3), 379-392, 2003.

Lovas, R.: Lie derivatives and Killing vector fields in Finsler geometry.
In: International Conference on Non-Eucledian Geometry in Modern Physics : Bolyai-Gauss-Lobachevsky 3, July 3-6, 2002, Tîrgu-Mureș, Romania. Ed.: I. Lovas, EP Systema, Debrecen, 35-50, 2003. ISBN: 9632062132

Száz, Á.: Linear extensions of relations between vector spaces.
Comment. math. Univ. Carolinae. 44 (2), 367-385, 2003.

Molnár, L., Barczy, M.: Linear maps on the space of all bounded observables preserving maximal deviation.
J. Funct. Anal. 205 (2), 380-400, 2003.

Czinder, P., Páles, Z.: Minkowski-type inequalities for two variable Stolarsky means.
Acta Sci. Math. 69 (1-2), 27-47, 2003.

Páles, Z.: On approximately convex functions.
Proc. Amer. Math. Soc. 131 (1), 243-252, 2003.

Neuman, E., Páles, Z.: On comparison of Stolarsky and Gini means.
J. Math. Anal. Appl. 278 (2), 274-284, 2003.

Daróczy, Z., Páles, Z.: On functional equations involving means.
Publ. Math. Debrecen. 62 (3-4), 363-377, 2003.

Adamek, M., Nikodem, K., Páles, Z.: On K-convex set-valued maps.
Rad. mat. 11 (2), 183-191, 2003.

Nikodem, K., Páles, Z.: On t-convex functions.
Real Anal. Exchange. 29 (1), 219-228, 2003.