1. Orthogonalities and functional equations

   • Justyna Sikorska

   OriginalPaper Open access 25 September 2014 Pages: 215 - 277

2. Is the dynamical system stable?

   • Zenon Moszner
   • Barbara Przebieracz

   OriginalPaper Open access 31 January 2015 Pages: 279 - 296

3. Orthogonally additive bijections are additive

   • Karol Baron

   OriginalPaper Open access 12 December 2013 Pages: 297 - 299

4. Linear functional equations, differential operators and spectral synthesis

   • G. Kiss
   • M. Laczkovich

   OriginalPaper 21 June 2014 Pages: 301 - 328

5. Local polynomials and the Montel theorem

   • Jose Maria Almira
   • László Székelyhidi

   OriginalPaper 09 October 2014 Pages: 329 - 338

6. On Wilson’s functional equations

   • Bruce Ebanks
   • Henrik Stetkær

   OriginalPaper 09 September 2014 Pages: 339 - 354

7. On functional equation stemming from utility theory and psychophysics

   • Jacek Chudziak

   OriginalPaper Open access 25 September 2014 Pages: 355 - 365

8. Regularity properties of measurable functions satisfying a multiplicative type functional equation almost everywhere

   • Antal Járai

   OriginalPaper 18 April 2015 Pages: 367 - 381

9. Improving regularity of solutions of a difference equation

   • Witold Jarczyk

   OriginalPaper Open access 26 March 2015 Pages: 383 - 391

10. Deriving meaningful scientific laws from abstract, “gedanken” type, axioms: five examples

    • Jean-Claude Falmagne

    OriginalPaper 17 March 2015 Pages: 393 - 435

11. Relations between generalized Aczél–Jabotinsky and Aczél–Jabotinsky differential equations

    • Ludwig Reich
    • Jörg Tomaschek

    OriginalPaper 17 February 2015 Pages: 437 - 448