59th International Symposium
on Functional Equations

June 18-25, 2023,
Hajdúszoboszló, Hungary

Dedicated to Zoltán Daróczy on his 85th birthday anniversary
59th International Symposium on Functional Equations
June 18-25, 2023, Hajdúszoboszló, Hungary
Dedicated to Zoltán Daróczy on his 85th birthday anniversary

List of Talks

  1. Mirosław ADAMEK, On a generalization of Ohlin's lemma,
  2. Ali Hasan ALI, Estimating Linear Functionals via Factorization: Theory and Applications,
  3. Alina Ramona BAIAS, On Ulam stability of some higher order linear difference equations,
  4. Mihály BESSENYEI, "Parturiunt montes nascetur ridiculus mus'',
  5. Zoltán BOROS, A conditional equation for almost polynomials,
  6. Pál BURAI, Results concerning quasi-arithmetic means,
  7. Jacek CHMIELIŃSKI, Approximate smoothness and additivity of Birkhoff-James orthogonality,
  8. Jacek CHUDZIAK, On extension problem for the principle of equivalent utility,
  9. Harald FRIPERTINGER, Non-trivial additive functions between vector spaces over not necessarily equal fields,
  10. Roman GER, Basic sets for some basic functional equations,
  11. Attila GILÁNYI, Computer assisted investigation of alienness of linear functional equations,
  12. Richárd GRÜNWALD, Local and global Hölder- and Minkowski-type inequalities for Gini and Hölder means,
  13. Eszter GSELMANN, Characterizations of higher order differential operators,
  14. Mehak IQBAL, Monomial functions, normal polynomials and polynomial equations,
  15. Witold JARCZYK, On a functional equation characterizing some probability distributions,
  16. Tibor KISS, Some solutions of the Járai--Maksa--Páles functional equation,
  17. Gergely KISS, How to solve polynomial equations for additive functions using harmonic analysis?,
  18. Tomasz KOCHANEK, Operator semigroups in the Calkin algebra,
  19. Zbigniew LEŚNIAK, On iterative roots of a Brouwer homeomorphism generating foliations of the plane,
  20. Michał LEWANDOWSKI, Characterizing Certainty Equivalents for binary lotteries,
  21. Judit MAKÓ, Counterexamples concerning $s$-convexity,
  22. Rayene MENZER, An alternative equation for generalized polynomials of degree two,
  23. Lajos MOLNÁR, Isomorphisms of positive definite cones of $C^*$-algebras with respect to variants of power means,
  24. Gábor MOLNÁR, On approximate convexity,
  25. Gergő NAGY, Characterizing centrality in C*-algebras in terms of local convexity of functions,
  26. Kazimierz NIKODEM, Strong Schur-convexity of the integral mean,
  27. Kazuki OKAMURA, Properties of quasi-arithmetic means of random variables,
  28. Diana OTROCOL, Ulam stability of a partial differential operator in Banach spaces,
  29. Fedor PAKOVICH, Functional equations in formal power series,
  30. Zsolt PÁLES, Affine selection of set-valued maps,
  31. Paweł PASTECZKA, Decision making via generalized Bajraktarević means,
  32. Evelin PÉNZES, Invariant subsets of invariant domains,
  33. Dorian POPA, Best Ulam constant for some differential operators,
  34. Teresa RAJBA, On the Raşa, Hermite-Hadamard and Jensen inequalities for box-convex functions,
  35. Ioan RAŞA, Functional inequalities and convex stochastic orders,
  36. Maciej SABLIK, Exponential rationals,
  37. Jens SCHWAIGER, Remarks on inhomogeneous functional equations,
  38. Cristina SERPA, On fractal calculus and fractal regression,
  39. László SZÉKELYHIDI, New results in spectral synthesis on varieties,
  40. Patrícia SZOKOL, Majorization and convexity generated by circulant, doubly stochastic matrices,
  41. Tomasz SZOSTOK, A method of proving inequalities for increasing and convex sequences,
  42. Lan Nhi TO, On computer assisted visualization of m-convex hulls of sets,
  43. Péter TÓTH, A system of functional equations and its applications in utility,
  44. Norbert TÓTH, An optimality condition for LPs,
  45. Amr ZAKARIA, Weaker regularity conditions for the equality problem of two-variable Bajraktarević means,
  46. Wenmeng ZHANG, Belitskii's $C^1$ linearization theorem revisited,
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