1. A variant of Wigner’s functional equation

   • Aleksej Turnšek

   OriginalPaper 16 September 2014 Pages: 949 - 956

2. Some methods for a Sutô–Aczél project—I

   • Anders Lundberg

   OriginalPaper 07 November 2014 Pages: 957 - 980

3. Conditionally δ-midconvex functions

   • Jacek Chudziak
   • Jacek Tabor
   • Józef Tabor

   OriginalPaper Open access 09 October 2014 Pages: 981 - 990

4. A local stability principle for continuous group homomorphisms in nonstandard setting

   • Filip Sládek
   • Pavol Zlatoš

   OriginalPaper 26 September 2014 Pages: 991 - 1001

5. Geometrically convex solutions of a generalized gamma functional equation

   • Kaizhong Guan

   OriginalPaper 12 September 2014 Pages: 1003 - 1013

6. Generalized conic functions of hv-convex planar sets: continuity properties and relations to X-rays

   • Csaba Vincze
   • Ábris Nagy

   OriginalPaper 17 December 2014 Pages: 1015 - 1030

7. On a new bivariate mean II

   • Edward Neuman

   OriginalPaper 25 February 2015 Pages: 1031 - 1040

8. On the functional equations of the q-Gamma function

   • Mansour Mahmoud

   OriginalPaper 12 September 2014 Pages: 1041 - 1050

9. The Aumann functional equation for general weighting procedures

   • Lucio R. Berrone

   OriginalPaper 26 March 2015 Pages: 1051 - 1073

10. Multiplicative Cauchy functional equation on symmetric cones

    • Bartosz Kołodziejek

    OriginalPaper Open access 22 November 2014 Pages: 1075 - 1094

11. Mellish theorem for generalized constant width curves

    • Witold Mozgawa

    OriginalPaper Open access 27 November 2014 Pages: 1095 - 1105

12. New solutions to Mulholland inequality

    • Milan Petrík

    OriginalPaper 04 January 2015 Pages: 1107 - 1122

13. On supplementary formulas for Sheffer sequences

    • Soichi Ikeda

    OriginalPaper 17 March 2015 Pages: 1123 - 1131

14. On Flett’s mean value theorem

    • Ondrej Hutník
    • Jana Molnárová

    OriginalPaper 22 October 2014 Pages: 1133 - 1165

15. The inhomogeneous general linear functional equation

    • Wolfgang Prager
    • Jens Schwaiger

    OriginalPaper 16 September 2014 Pages: 1167 - 1187

16. Characterizations of smooth spaces by approximate orthogonalities

    • Paweł Wójcik

    OriginalPaper Open access 12 September 2014 Pages: 1189 - 1194

17. On a functional equation related to roots of translations of positive integers

    • Bojan Bašić

    OriginalPaper 02 October 2014 Pages: 1195 - 1205

18. A note on f-derivations of triangular algebras

    • Dominik Benkovič

    OriginalPaper 16 September 2014 Pages: 1207 - 1211

19. Staircase convex results for a certain class of orthogonal polytopes

    • Marilyn Breen

    OriginalPaper 21 September 2014 Pages: 1213 - 1221

20. Squashing minimum coverings of 6-cycles into minimum coverings of triples

    • Elizabeth J. Billington
    • Selda Küçükçifçi
    • Mariusz Meszka

    OriginalPaper 22 October 2014 Pages: 1223 - 1239

21. On Morrison’s definite integral

    • J. Arias de Reyna
    • M. L. Glasser
    • Y. Zhou

    OriginalPaper 09 May 2015 Pages: 1241 - 1250