Resumen de Extensions of a residually finite group by a weakly sofic group are weakly sofic

Lev Glebsky

• In this paper, we show that residually-finite-by-weakly-sofic extensions are weakly sofic. More precisely, we show that if in an exact sequence of groups 1 ! N ,! K G ! 1 the group G is residually finite and N is weakly sofic, then K is weakly sofic