Zvonko Čerin;
| |

Formulas for linear sums that involve generalized
Fibonacci and Lucas numbers;
| 3--15 |

I. Ya. Diasamidze, Sh. Makharadze, N. Aydın and A. Erdoğan;
| |

Complete semigroups of binary relations defined by semilattices
of the class *Z*-elementary *X*-semilattice of unions;
| 17--35 |

B. Fisher and F. Al-Sirehy;
| |

On the convolution and neutrix convolution of the functions *sinh*^{-1}x and *x*^{r};
| 37--48 |

M. B. Mesmouli, A. Ardjouni and A. Djoudi;
| |

Periodicity of solutions for a system of nonlinear integro-differential
equations;
| 49--63 |

Sergey M. Zagorodnyuk;
| |

A refined polar decomposition for *J*-unitary operators;
| 65--72 |

S. Chauhan, M. Imdad, Z. Kadelburg and C. Vetro;
| |

Coincidence and common fixed points of weakly reciprocally continuous and
compatible hybrid mappings via an implicit relation and an application;
| 73--84 |

B. Deshpande and A. Handa;
| |

Common coupled fixed point theorems for two hybrid pairs of mappings
satisfying an implicit relation;
| 85--100 |

Z. Kolar-Begović, R. Kolar-Šuper and V.
Volenec;
| |

Equicevian points and equiangular lines of a triangle in an isotropic plane;
| 101--107 |

Nurettin Cenk Turgay;
| |

On the quasi-minimal surfaces in the 4-dimensional de Sitter space
with 1-type Gauss map;
| 109--116 |

Ivan Lončar;
| |

A note on inverse systems of *S(n)*-closed spaces;
| 117--130 |

C. Carpintero, N. Rajesh, E. Rosas and S. Saranyasri;
| |

Somewhat ω-continuous functions;
| 131--137 |