On solvability of f(p(x)) = q(f(x)) for given real functions p, q Oldřich Kopeček OriginalPaper 06 January 2016 Pages: 471 - 494
Decomposition of two functions in the orthogonality equation Radosław ŁukasikPaweł Wójcik OriginalPaper Open access 12 November 2015 Pages: 495 - 499
On the characterization of distributivity equations about quasi-arithmetic means Ya-Ming WangFeng Qin OriginalPaper 10 September 2015 Pages: 501 - 515
Stability of a generalization of Wilson’s equation Bouikhalene BelaidElqorachi Elhoucien OriginalPaper 10 May 2015 Pages: 517 - 525
Hyperstability of general linear functional equation Anna BahyryczJolanta Olko OriginalPaper Open access 26 March 2016 Pages: 527 - 540
More, or less, trivial matrix functional equations Mario BruschiFrancesco Calogero OriginalPaper 25 January 2016 Pages: 541 - 557
On Hyers–Ulam stability of generalized linear functional equation and its induced Hyers–Ulam programming problem Dong Zhang OriginalPaper 12 December 2015 Pages: 559 - 568
On a generalization of the class of Jensen convex functions Teodoro LaraRoy QuinteroJosé Luis Sánchez OriginalPaper 08 February 2016 Pages: 569 - 580
The rate of growth of moments of certain cotangent sums Helmut MaierMichael Th. Rassias OriginalPaper 27 June 2015 Pages: 581 - 595
On the stability of a generalized additive functional equation Maysam Maysami Sadr OriginalPaper 07 August 2015 Pages: 597 - 606
Coplanarity of lines in projective and polar Grassmann spaces Krzysztof PetelczycMariusz Żynel OriginalPaper Open access 26 November 2015 Pages: 607 - 623
The height of multiple edge plane trees Clemens HeubergerHelmut ProdingerStephan Wagner OriginalPaper Open access 05 November 2015 Pages: 625 - 645
Approximate Roberts orthogonality sets and \({(\delta, \varepsilon)}\)-(a, b)-isosceles-orthogonality preserving mappings Ali ZamaniMohammad Sal Moslehian OriginalPaper 06 November 2015 Pages: 647 - 659
The structure of regular disjoint groups of real homeomorphisms Hojjat Farzadfard OriginalPaper 06 November 2015 Pages: 661 - 670
