56th International Symposium
on Functional Equations

June 17-24, 2018
Graz, Austria
56th International Symposium on Functional Equations
June 17-24, 2018, Graz, Austria

List of Talks

  1. Mirosław ADAMEK, On Jensen-type inequalities for $F$-convex functions,
  2. Roman BADORA, Remarks on Ulam's problem for orthogonally additive and orthogonally exponential functionals on $C(K)$,
  3. Anna BAHYRYCZ, On stability of an equation related to bi-linear mappings,
  4. Karol BARON, Weak law of large numbers for iterates of random-valued functions,
  5. Mihály BESSENYEI, Applications of the renorming technique,
  6. Zoltán BOROS, Higher order differences of multiadditive mappings,
  7. Pál BURAI, Quasi-arithmetic expressions,
  8. Jacek CHMIELIŃSKI, Approximate Birkhoff orthogonality and related problems,
  9. Jacek CHUDZIAK, Extension problem for the principle of equivalent utility,
  10. Zoltán DARÓCZY, Problems and results on generalized quasi-arithmetic means,
  11. Gregory DERFEL, Analysis of the archetypal functional equation in the non-critical case,
  12. Jimmy DEVILLET, On bisymmetric and quasitrivial operations,
  13. Włodzimierz FECHNER, Some remarks on multiplicative Sincov's functional equation,
  14. Żywilla FECHNER, On Butler's problem,
  15. Harald FRIPERTINGER, On iteration of bijective functions with discontinuities,
  16. Roman GER, An alternative d'Alembert's equation stemming from Cuculière's problem,
  17. Attila GILÁNYI, Bernstein--Doetsch type theorems for set-valued functions with Tabor type error terms,
  18. Dorota GŁAZOWSKA, Invariance of quasi-arithmetic mean with respect to a pair of weighted Bajraktarević means,
  19. Moshe GOLDBERG, Continuity of subnorms and seminorms on finite-dimensional vector spaces,
  20. Eszter GSELMANN, Characterization of field homomorphisms through Pexiderized functional equations,
  21. László HORVÁTH, Generalization of an operator Jensen's inequality to normal operators,
  22. Wojciech JABŁOŃSKI, Geometric aspects of Steinhaus-type property,
  23. Antal JÁRAI, On the state of the second part of Hilbert's fifth problem,
  24. Justyna JARCZYK, On symmetry of Makó-Páles means,
  25. Witold JARCZYK, Simultaneous difference equations on a restricted domain,
  26. Gergely KISS, Derivations and differential operators on rings and fields,
  27. Tibor KISS, On a functional equation involving the arithmetic mean,
  28. Paolo LEONETTI, Ideal cluster points Vs Ideal limit points,
  29. Zbigniew LEŚNIAK, On the boundaries of equivalence classes of the codivergency relation for Brouwer homeomorphisms,
  30. Liu LIU, Iterative roots of a class of monotone multifunctions of finitely many jumps,
  31. Gyula MAKSA, On the alienation of the Pexiderized additive Cauchy equation and the Pexiderized logarithmic equation,
  32. Janusz MATKOWSKI, Mean invariance identity generalizing the Pythagorean harmony proportion,
  33. Janusz MORAWIEC, On a functional equation connected with $\varepsilon$-invariant measures,
  34. Kazimierz NIKODEM, Strongly convex functions (survey talk),
  35. Andrzej OLBRYŚ, On some generalization of Ng's theorem,
  36. Jolanta OLKO, On stability and hyperstability of an equation characterizing multi-Cauchy-Jensen mappings,
  37. Zsolt PÁLES, Characterization of the Schur convexity of deviation means,
  38. Paweł PASTECZKA, On Hardy type inequalities for weighted means,
  39. Barbara PRZEBIERACZ, On approximate group homeomorphisms,
  40. Teresa RAJBA, A problem on Bernstein polynomials and convex functions and related results,
  41. Ludwig REICH, Functional equations of Dhombres type in the complex domain,
  42. Maciej SABLIK, Exponential polynomials revisited,
  43. Yong-Guo SHI, Solutions of the Feigenbaum-Kadanoff-Shenker equation,
  44. Justyna SIKORSKA, A method of solving some functional equations and related stability problems,
  45. Peter STADLER, Curve shortening by short rulers,
  46. Henrik STETKAER, An extension of the sine addition law,
  47. Mariusz SUDZIK, A problem of G. Derfel and its partial solution,
  48. László SZÉKELYHIDI, Spectral synthesis and invariant differential operators,
  49. Patrícia SZOKOL, On certain classes of Schur-convex functions,
  50. Tomasz SZOSTOK, Hermite-Hadamard type inequalities for fractional integrals,
  51. Imke TOBORG, The images of orthogonally additive mappings of inner product spaces into groups,
  52. Peter VOLKMANN, On orthogonally additive mappings having values in groups,
  53. Szymon WĄSOWICZ, Functions generating strongly Schur-convex sums,
  54. Bettina WILKENS, Algebraic characterisations of synthesizable varieties on discrete abelian groups,
  55. Paweł WÓJCIK, On functional equations characterizing linear similarities,
  56. Zhiheng YU, Forts of quadratic polynomials under iteration,
  57. Yingying ZENG, Iterative roots of clenched single-plateau functions,
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