Fechner, W., Gselmann, E.: A characterization of differential operators in the ring of complex polynomials.
Indag. Math.-New Ser. [Epub ahead of print] (-), -, 2024.

Gselmann, E., Kiss, G.: Polynomial Equations for Additive Functions I: The Inner Parameter Case.
Results Math. 79 (2), 1-37, 2024.

Gselmann, E., Kiss, G.: Polynomial equations for additive functions II. The mixed parameter case.
Rev. Real Acad. Cienc. Exactas Fis. Nat. Ser. A-Mat. 118 (3), 1-35, 2024.

Fechner, Ż., Gselmann, E., Székelyhidi, L.: Endomorphisms and derivations of the measure algebra of commutative hypergroups.
Indag. Math.-New Ser. [Epub ahead of print] (-), 2023.

Fechner, Ż., Gselmann, E., Székelyhidi, L.: Generalized derivations and generalized exponential monomials on hypergroups.
Opuscula math. 43 (4), 493-505, 2023.

Fechner, Ż., Gselmann, E., Székelyhidi, L.: Moment functions of higher rank on some types of hypergroups.
Semigr. Forum. 107 (3), 624-636, 2023.

Gselmann, E., Iqbal, M.: Monomial functions, normal polynomials and polynomial equations.
Aequ. Math. [Epub ahead of print] (-), -, 2023.

Abayomi, E., Ali, A., Bessenyei, M., Boros, Z., Chmielewska, K., Chudziak, J., Gát, G., Gilányi, A., Grünwald, R., Gselmann, E., Iqbal, M., Kiss, T., Łukasik, R., Maslyuchenko, O., Menzer, R., Molnár, G., Olbryś, A., Páles, Z., Pénzes, E., Pieszczek, M., Sablik, M., Székelyhidi, L., Szostok, T., Tóth, N., Tóth, P., Wójcik, S., Zürcher, T.: Report of Meeting: The Twenty-second Debrecen-Katowice Winter Seminar on Functional Equations and Inequalities Hajdúszoboszló (Hungary), February 1-4, 2023.
Ann. Math. Sil. 37 (2), 315-334, 2023.

Adamek, M., Ali, A., Baias, A., Bessenyei, M., Boros, Z., Gilányi, A., Grünwald, R., Gselmann, E., Iqbal, M., Kiss, T., Kiss, G., Menzer, R., Nagy, G., Páles, Z., Székelyhidi, L., Szokol, P., To, L., Tóth, P., Tóth, N.: The 59th International Symposium on Functional Equations Hotel Aurum, Hajdúszoboszló (Hungary), June 18-25, 2023.
Aequ. Math. 97 (5-6), 1259-1290, 2023.

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

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

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

Burai, P., Bessenyei, M., Boros, Z., Chmieliński, J., Chudziak, J., Fazekas, B., Ger, R., Gselmann, E., Iqbal, M., Łukasik, R., Maslyuchenko, O., Menzer, R., Molnár, G., Olbryś, A., Pasteczka, P., Pénzes, E., Sablik, M., Sikorska, J., Székelyhidi, L., Szokol, P., Szostok, T., Tóth, P., Zürcher, T.: Report of Meeting: The Twenty-first Katowice-Debrecen Winter Seminar on Functional Equations and Inequalities Brenna (Poland), February 2-5, 2022.
Ann. Math. Sil. 36 (1), 92-105, 2022.

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

Fechner, Ż., Gselmann, E., Székelyhidi, L.: Moment functions and exponential monomials on commutative hypergroups.
Aequ. Math. 95 1281-1290, 2021.

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

Gselmann, E., Székelyhidi, L.: Symmetric spectral synthesis.
Aequ. Math. 95 (2), 255-279, 2021.

Gselmann, E., Horváth, G.: The symmetry group of first order differential equations and the global rectification theorem.
J. Lie Theory. 31 (1), 237-247, 2021.

Dékány, É., Alpár, D., Bálint, E., Béni, S., Csupor, D., Gselmann, E., Kóspál, Á., Máté, Á., Toldi, G., Török, P., Solymosi, K.: Fiatal kutatók nehézségei a COVID-19 járvány alatt = Difficulties of Young Researchers during the Covid-19 Pandemic.
Magy. tud. 181 (12), 1688-1697, 2020.

Gselmann, E., Kiss, G., Vincze, C.: On a class of linear functional equations without range condition.
Aequ. Math. 94 (3), 473-509, 2020.

Gselmann, E., Kiss, G.: Remarks on the notion of homo-derivations.
Ann. Univ. Sci. Bp. Rolando Eötvös Nomin., Sect. comput. 51 111-130, 2020.

Gselmann, E., Kiss, G., Vincze, C.: Characterization of field homomorphisms through Pexiderized functional equations.
J. Differ. Equ. Appl. 25 (12), 1645-1679, 2019.

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

Gselmann, E., Kiss, G., Vincze, C.: On functional equations characterizing derivations: methods and examples.
Results Math. 73 (2), 1-23, 2018.

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.

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

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

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

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

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

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

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.

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

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

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

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

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

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

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

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

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.

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

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)

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