1. Exploring the concept of s-convexity

   • Marcia R. Pinheiro

   Research Papers 14 December 2007 Pages: 201 - 209

2. On the stability of t-convex functions

   • Attila Házy

   OriginalPaper 14 December 2007 Pages: 210 - 218

3. On existence of subsemigroups of the group \(L^1_s\) and extensibility of homomorphisms into \(L^1_s\)

   • Wojciech Jabłoński

   OriginalPaper 14 December 2007 Pages: 219 - 225

4. The superstability of d’Alembert’s functional equation on step 2 nilpotent groups

   • Ahmed Redouani
   • Elhoucien Elqorachi
   • Themistocles M. Rassias

   OriginalPaper 14 December 2007 Pages: 226 - 241

5. The overdeterminedness of a class of functional equations

   • Orr Moshe Shalit

   OriginalPaper 14 December 2007 Pages: 242 - 248

6. Alexandrov–Zeeman type theorems expressed in terms of definability

   • Victor Pambuccian

   OriginalPaper 14 December 2007 Pages: 249 - 261

7. Homogeneous symmetric means of two variables

   • László Losonczi

   OriginalPaper 14 December 2007 Pages: 262 - 281

8. Banach–Mazur distance of planar convex bodies

   • Marek Lassak

   OriginalPaper 14 December 2007 Pages: 282 - 286

9. Homomorphisms of the group \(L^1_s\) into the group \(L^1_r\) for r ≤ 3

   • Wojciech Jabłoński

   OriginalPaper 14 December 2007 Pages: 287 - 309

10. Forti’s example of an unstable homomorphism equation

    • Anna Bahyrycz

    Short Communications 14 December 2007 Pages: 310 - 313

11. Continuity of solutions of the translation equation

    • Karol Baron
    • Wojciech Chojnacki
    • Witold Jarczyk

    OriginalPaper 14 December 2007 Pages: 314 - 317

12. A short note concerning solutions of a generalization of the Goła̧b–Schinzel equation

    • Eliza Jabłońska

    OriginalPaper 14 December 2007 Pages: 318 - 320