1. In celebration of the life of Professor János Aczél

   • Bruce Ebanks
   • Che Tat Ng

   EditorialNotes 11 May 2020 Pages: 401 - 404

   

2. Invariant means and iterates of mean-type mappings

   • Janusz Matkowski
   • Paweł Pasteczka

   OriginalPaper Open access 29 July 2019 Pages: 405 - 414

3. Weak limit of iterates of some random-valued functions and its application

   • Karol Baron

   OriginalPaper Open access 05 April 2019 Pages: 415 - 425

4. Correction To: Weak limit of iterates of some random-valued functions and its application

   • Karol Baron

   Correction 27 January 2020 Pages: 427 - 427

5. More about Wilson’s functional equation

   • Henrik Stetkær

   OriginalPaper 27 May 2019 Pages: 429 - 446

6. Stochastic processes generating Schur-convex sums

   • Dawid Kotrys
   • Kazimierz Nikodem

   OriginalPaper Open access 27 May 2019 Pages: 447 - 453

7. On the geometric concomitant equation

   • Zenon Moszner

   OriginalPaper Open access 23 January 2020 Pages: 455 - 471

   

8. On a class of linear functional equations without range condition

   • Eszter Gselmann
   • Gergely Kiss
   • Csaba Vincze

   OriginalPaper Open access 24 August 2019 Pages: 473 - 509

   

9. A functional equation on groups with involutions

   • Che Tat Ng
   • Hou Yu Zhao
   • Xia Lin

   OriginalPaper 16 October 2019 Pages: 511 - 533

10. On a class of abstract convex cone valued functional equations

    • Justyna Sikorska

    OriginalPaper Open access 01 August 2019 Pages: 535 - 545

11. A comparison among methods for proving stability

    • Gian Luigi Forti
    • Ekaterina Shulman

    OriginalPaper 19 September 2019 Pages: 547 - 574

12. Investigations on the Hyers–Ulam stability of generalized radical functional equations

    • Janusz Brzdęk
    • El-sayed El-hady
    • Jens Schwaiger

    OriginalPaper Open access 23 July 2019 Pages: 575 - 593

13. Fractals for minimalists

    • Mihály Bessenyei
    • Evelin Pénzes

    OriginalPaper Open access 06 September 2019 Pages: 595 - 603