1. On the Schröder equation and iterative sequences of C ^r diffeomorphisms in \({\mathbb{R}^{N}}\) space

   • Marek Cezary Zdun

   OriginalPaper Open access 30 May 2012 Pages: 1 - 15

2. The existence of (2 × c, λ) grid-block designs with \({c\in \{3, 4, 5\}}\) and λ ≥ 1

   • Jie Yan

   OriginalPaper 22 May 2012 Pages: 17 - 33

3. Functional equations for vector products and quaternions

   • Balázs Nyul
   • Gábor Nyul

   OriginalPaper 04 March 2012 Pages: 35 - 39

4. Ball and spindle convexity with respect to a convex body

   • Zsolt Lángi
   • Márton Naszódi
   • István Talata

   OriginalPaper 19 September 2012 Pages: 41 - 67

5. Functional definitions for q-analogues of Eulerian functions and applications

   • Ahmad El-Guindy
   • Zeinab Mansour

   OriginalPaper 28 June 2012 Pages: 69 - 110

6. The properties of functional inclusions and Hyers–Ulam stability

   • Magdalena Piszczek

   OriginalPaper Open access 22 February 2012 Pages: 111 - 118

7. Structural results on convexity relative to cost functions

   • Flavia-Corina Mitroi
   • Daniel Alexandru Ion

   OriginalPaper 18 April 2012 Pages: 119 - 130

8. An alternative Cauchy functional equation on a semigroup

   • Valeriĭ A. Faĭziev
   • Robert C. Powers
   • Prasanna K. Sahoo

   OriginalPaper 11 May 2012 Pages: 131 - 163

9. On a problem of T. Szostok on functions with monotonic differences

   • Marcin Balcerowski

   OriginalPaper 04 August 2012 Pages: 165 - 167

10. On solutions of the d’Alembert equation on a restricted domain

    • Anna Bahyrycz
    • Janusz Brzdȩk

    OriginalPaper Open access 13 November 2012 Pages: 169 - 183

11. The cogyrolines of Möbius gyrovector spaces are metric but not periodic

    • Oğuzhan Demirel
    • Emine Soytürk Seyrantepe

    OriginalPaper 16 May 2012 Pages: 185 - 200