Roman Ger, 70 years of a mathematician’s adventurous life Maciej Sablik OriginalPaper Open access 15 February 2016 Pages: 1 - 5
Remark on the graph of additive functions László Székelyhidi OriginalPaper 06 August 2015 Pages: 7 - 9
Orthogonality equation with two unknown functions Jacek Chmieliński OriginalPaper Open access 21 June 2015 Pages: 11 - 23
Van Vleck’s functional equation for the sine Henrik Stetkær OriginalPaper 07 April 2015 Pages: 25 - 34
Strong convexity and separation theorems Nelson MerentesKazimierz Nikodem OriginalPaper Open access 26 June 2015 Pages: 47 - 55
On the alienation of the exponential Cauchy equation and the Hosszú equation Gyula MaksaMaciej Sablik OriginalPaper 19 June 2015 Pages: 57 - 66
Stability of a functional equation for generalized polynomials Wolfgang PragerJens Schwaiger OriginalPaper 26 September 2015 Pages: 67 - 75
On Lipschitzian solutions to an inhomogeneous linear iterative equation Karol BaronRafał KapicaJanusz Morawiec OriginalPaper Open access 06 November 2015 Pages: 77 - 85
On a functional equation on groups with an involution related to quadratic polynomials in two variables Heather B. HuntThomas RiedelPrasanna K. Sahoo OriginalPaper 06 August 2015 Pages: 87 - 96
Erratum to: On a functional equation on groups with an involution related to quadratic polynomials in two variables Heather B. HuntThomas RiedelPrasanna K. Sahoo Erratum 27 October 2015 Pages: 97 - 98
Convergence in measure and in category, similarities and differences Władysław Wilczyński OriginalPaper Open access 03 February 2016 Pages: 99 - 105
Alienation of the logarithmic and exponential functional equations Zygfryd KominekJustyna Sikorska OriginalPaper Open access 11 July 2015 Pages: 107 - 121
A functional equation with involution related to the cosine function Allison M. PerkinsPrasanna K. Sahoo OriginalPaper 26 June 2015 Pages: 123 - 131
Additive iterative roots of identity and Hamel bases Wojciech Jabłoński OriginalPaper Open access 13 October 2015 Pages: 133 - 145
A 0–1 law for multiplicative functional equations Antal Járai OriginalPaper 22 February 2016 Pages: 147 - 161
Stability of functional equations connected with quadrature rules Tomasz Szostok OriginalPaper Open access 25 February 2016 Pages: 163 - 172
The Hahn–Banach theorem almost everywhere Roman Badora OriginalPaper Open access 28 July 2015 Pages: 173 - 179
Characterizations of higher-order convexity properties with respect to Chebyshev systems Zsolt PálesÉva Székelyné Radácsi OriginalPaper 24 October 2015 Pages: 193 - 210
From a theorem of R. Ger and T. Kochanek to marginal joints of means Zoltán DaróczyJustyna JarczykWitold Jarczyk OriginalPaper Open access 14 November 2015 Pages: 211 - 233
Functions on semigroups with vanishing finite Cauchy differences Lin LiChe Tat Ng OriginalPaper 28 January 2016 Pages: 235 - 247
In some symmetric spaces monotonicity properties can be reduced to the cone of rearrangements Henryk HudzikRadosław KaczmarekMiroslav Krbec OriginalPaper 12 November 2015 Pages: 249 - 261
Normal forms of functional-differential equations of Beardon type and Briot–Bouquet type equations in the complex domain Ludwig ReichJörg Tomaschek OriginalPaper 06 January 2016 Pages: 263 - 270
