# Czechoslovak Mathematical Journal

## Vol. 52, No. 4, 2002 · Contents

E. Bravyi, R. Hakl, A. Lomtatidze:
On Cauchy problem for first order nonlinear functional differential equations of non-Volterra's type

I. Dobrakov, T. V. Panchapagesan:
A simple proof of the Borel extension theorem and weak compactness of operators

J. Jezek:
Termal groupoids

Libor Vesely:
Chebyshev centers in hyperplanes of $c_0$

Angelina Y. M. Chin:
A note on semilocal group rings

J. R. Graef, C. Qian:
Global attractivity of the equilibrium of a nonlinear difference equation

Gary Chartrand, Ping Zhang:
Extreme geodesic graphs

Jong Yeoul Park, Jeong Ja Bae:
On the existence of solutions for some nondegenerate nonlinear wave equations of Kirchhoff type

Jan Jakubik:
On product $MV$-algebras

J. Jezek:
Three-variable equations of posets

Cheng-Dong Zhao, Qi-Min He:
On the center of the generalized Lienard system

Ondrej Dosly, Jan Osicka:
Oscillation and nonoscillation of higher order self-adjoint differential equations

Antonio Attalienti, Michele Campiti:
Bernstein-type operators on the half line