1. Erdős–Gyárfás conjecture for some families of Cayley graphs

   • Mohammad Hossein Ghaffari
   • Zohreh Mostaghim

   OriginalPaper 21 November 2017 Pages: 1 - 6

2. Lower estimation of the difference between quasi-arithmetic means

   • Paweł Pasteczka

   OriginalPaper Open access 11 October 2017 Pages: 7 - 24

3. Around Jensen’s inequality for strongly convex functions

   • Hamid Reza Moradi
   • Mohsen Erfanian Omidvar
   • Kazimierz Nikodem

   OriginalPaper 04 July 2017 Pages: 25 - 37

4. One-sided invertibility of discrete operators and their applications

   • Irina Asekritova
   • Yuri Karlovich
   • Natan Kruglyak

   OriginalPaper 19 December 2017 Pages: 39 - 73

5. Relation-induced connectedness in the digital plane

   • Josef Šlapal

   OriginalPaper 15 September 2017 Pages: 75 - 90

6. Super-biderivations of classical simple Lie superalgebras

   • Jixia Yuan
   • Xiaomin Tang

   OriginalPaper 22 September 2017 Pages: 91 - 109

7. Separation by Jensen and affine stochastic processes

   • Dawid Kotrys
   • Kazimierz Nikodem

   OriginalPaper Open access 05 January 2018 Pages: 111 - 122

8. From r-dual sets to uniform contractions

   • Károly Bezdek

   OriginalPaper 23 November 2017 Pages: 123 - 134

9. A perimeter-based angle measure in Minkowski planes

   • Martin Obst

   OriginalPaper 27 December 2017 Pages: 135 - 163

10. Weighted entropy and optimal portfolios for risk-averse Kelly investments

    • M. Kelbert
    • I. Stuhl
    • Y. Suhov

    OriginalPaper 11 November 2017 Pages: 165 - 200