1. Maciej Sablik

   • Roman Ger

   OriginalPaper Open access 11 December 2023 Pages: 887 - 889

   

2. László Székelyhidi

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   OriginalPaper Open access 12 December 2023 Pages: 891 - 897

   

3. Using Aichinger’s equation to characterize polynomial functions

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   OriginalPaper Open access 27 November 2022 Pages: 899 - 907

4. On metric stability of set-valued subadditive functions

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   OriginalPaper Open access 12 February 2023 Pages: 909 - 917

5. Explicit forms of invariant means: complementary results to Gauss \(\left( {\mathcal {A}},{\mathcal {G}}\right) \)-theorem and some applications

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   OriginalPaper Open access 14 July 2023 Pages: 919 - 934

6. On quadrature means

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   OriginalPaper Open access 24 May 2023 Pages: 935 - 949

7. Vector-valued invariant means

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   OriginalPaper Open access 09 April 2023 Pages: 951 - 962

8. Exponential polynomials and the sine addition law on magmas

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   OriginalPaper Open access 12 June 2023 Pages: 963 - 979

9. Further remarks on local K-boundedness of K-subadditive set-valued maps

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   • Kazimierz Nikodem

   OriginalPaper Open access 21 November 2023 Pages: 981 - 993

10. Cosine subtraction laws

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    OriginalPaper 21 June 2023 Pages: 995 - 1010

11. Convex functions and approximate Birkhoff–James orthogonality

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    • Karol Gryszka
    • Paweł Wójcik

    OriginalPaper Open access 09 October 2023 Pages: 1011 - 1021

12. Vector valued invariant means, complementability and almost constrained subspaces

    • Radosław Łukasik

    OriginalPaper Open access 21 May 2023 Pages: 1023 - 1032

    

13. Remarks on a linearization of Koopmans recursion

    • Marek Cezary Zdun

    OriginalPaper Open access 20 October 2023 Pages: 1033 - 1049

14. On the existence of m-norms in vector spaces over valued fields

    • Jens Schwaiger

    OriginalPaper Open access 22 April 2023 Pages: 1051 - 1058

15. Monomial functions, normal polynomials and polynomial equations

    • Eszter Gselmann
    • Mehak Iqbal

    OriginalPaper Open access 28 June 2023 Pages: 1059 - 1082

16. Recent progress on minimal hypersurfaces with cylindrical tangent cones

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    OriginalPaper 29 September 2023 Pages: 1083 - 1106

17. Iterative roots of PM functions extended from the characteristic interval

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    • Murugan Suresh Kumar
    • Witold Jarczyk

    OriginalPaper 12 July 2023 Pages: 1107 - 1128

    

18. Invariant affine subspaces

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    OriginalPaper Open access 21 April 2023 Pages: 1129 - 1139

19. Quadratic functions fulfilling an additional condition along the hyperbola \(\pmb {xy = 1} \)

    • Zoltán Boros
    • Edit Garda-Mátyás

    OriginalPaper Open access 25 November 2023 Pages: 1141 - 1155

20. Remarks on Wright-convex functions

    • Andrzej Olbryś

    OriginalPaper Open access 12 December 2023 Pages: 1157 - 1171

21. On the state of the second part of Hilbert’s fifth problem

    • Antal Járai

    OriginalPaper Open access 22 December 2023 Pages: 1173 - 1184

22. Computer assisted investigation of alienness of linear functional equations

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    • Lan Nhi To

    OriginalPaper Open access 05 September 2023 Pages: 1185 - 1199

    

23. On the Jensen convexity of quasideviation and Bajraktarević means

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    • Paweł Pasteczka

    OriginalPaper Open access 01 July 2023 Pages: 1201 - 1219

24. Basic sets for some basic functional equations

    • Roman Ger

    OriginalPaper Open access 27 July 2023 Pages: 1221 - 1230

25. Almost multiplicative maps with respect to almost associative operations on Banach algebras

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    OriginalPaper Open access 11 August 2023 Pages: 1231 - 1243

26. Zero utility principles coinciding on binary risks

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    • Małgorzata Chudziak

    OriginalPaper Open access 20 November 2023 Pages: 1245 - 1258

27. The 59th International Symposium on Functional Equations Hotel Aurum, Hajdúszoboszló (Hungary), June 18–25, 2023

    Report of Meeting 20 November 2023 Pages: 1259 - 1290