**36**(2009)

ISSN 1787-5021 (Print)

ISSN 1787-6117 (Online)

## Content

### Research papers:

A common fixed point theorem via a generalized contractive condition

by Abdelkrim Aliouche, Faycel Merghadi

Pages: 3-14

Approximation approach to performance evaluation of Proxy Cache Server systems

by Tamás Bérczes

Pages: 15-28

Crossed ladders and Euler’s quartic

by A. Bremner, R. Høibakk, D. Lukkassen

Pages: 29-41

On the existence of triangle with given angle and opposite angle bisectors length

by József Bukor

Pages: 43-46

Inclusion properties of the intersection convolution of relations

by Judita Dascăl, Árpád Száz

Pages: 47-60

A computational algorithm for the CPP/M/c retrial queue

by Tien Van Do

Pages: 61-69

On the k-reversibility of finite automata

by János Falucskai

Pages: 71-75

Surface interpolation with local control by linear blending

by Imre Juhász, Miklós Hoffmann

Pages: 77-84

Introducing general redundancy criteria for clausal tableaux, and proposing resolution tableaux

by Gergely Kovásznai, Gábor Kusper

Pages: 85-101

Localization of touching points for interpolation of discrete circles

by Roland Kunkli

Pages: 103-110

A note on integral clock triangles

by Allan J. MacLeod

Pages: 111-115

A geometric proof to Cantor’s theorem and an irrationality measure for some Cantor’s series

by Diego Marques

Pages: 117-121

An almost sure limit theorem for α-mixing random fields

by Tibor Tómács

Pages: 123-132

Limit theorems for the longest run

by József Túri

Pages: 133-141

Investigating the mean response time in finite-source retrial queues using the algorithm by Gaver, Jacobs, and Latouche

by Patrick Wüchner, János Sztrik, Hermann de Meer

Pages: 143-160

### Methodological papers:

Teaching programming language in grammar schools

by Zoltán Hernyák, Roland Király

Pages: 163-174

A purely geometric proof of the uniqueness of a triangle with given lengths of one side and two angle bisectors

by Victor Oxman

Pages: 175-180