Extensions of Caristi-Kirk's theorem

M. O. DIALLO, M. OUDADESS

The group structure of Hecke groups H $(lambda_q)$

İ. N. CANGÜL

On the additive group structure of nonstandard models of Z

M. TERZİLER, Ç. GENCER

Normal boundary value problems for differential equations of higher order

F. G. MAKSUDOV, Z. I. ISMAILOV

Linear topologic invariants and their applications to isomorphic classification of generalized power spaces

V. ZAHARIUTA

Absolutely representing systems and convolution operators in the complex domain

Yu F. KOROBEINIK

Rings in which strongly prime right ideals are finitely generated

Arif KAYA

A property of Meldrum groups

S. ATLIHAN, A. O. ASAR

Relations between classes of Dragilev spaces $(f_1)_{sigma}$ and $(f_2)_{sigma}$ sigma for arbitrary function $f^{-1}_1 circ f_2$.

V. KASHIRIN, A. VAKULENKO

($sigma$, $tau$)-Lie ideals in prime rings with derivation

Muharrem SOYTÜRK