**Contents****Editorial**

**Research papers**

- Marian Genčev: A note on a property of the Gini coefficient
- Majid Mirmiran: Insertion of a Contra-Baire-1 (Baire-.5) Function
- Hery Randriamaro: A Deformed Quon Algebra
- Yacine Arioua, Maria Titraoui: New class of boundary value problem for nonlinear fractional differential equations involving Erdélyi-Kober derivativ
- George E. Chatzarakis, Irena Jadlovská: Oscillation in deviating differential equations using an iterative method
- Astha Chauhan, Rajan Arora: Time fractional Kupershmidt equation: symmetry analysis and explicit series solution with convergence analysis