Let { cal N}_c be the variety of nilpotent groups of class at most c

(c geq 2) and G=Z_r oplus Z_s be the direct sum of two finite

cyclic groups. It is shown that if the greatest common divisor ...

In 1972 K.I.Tahara [7,2 Theorem 2.2.5] , using cohomological method, showed

that if a finite group $G=T\\\\rhd\\\\!\\\\!\\\\! <N$ is the semidirect product of a normal

subgroup $N$ and a subgroup $T$ , ...

We present some bounds for the exponent of the Schur multiplier of

a pair of groups $(G,N)$ in terms of the exponent of $G$, when

$G$ is the semidirect product of $N$ by $Q$, and also in terms of

the ...

In this talk, we are going to survey structures of the Schur

multiplier, nilpotent and polynilpotent multipliers (the Baer

invariant with respect to nilpotent and polynilpotent varieties,

respectively) ...

In this talk, using properties of fundamental groups and covering

spaces of connected polyhedra, we present topological proof for some

famous theorems in group theory such as Nielsen-Schreier theorem,

Kurosh ...

On the order of Schur multiplier of finiteabelian p-groups

Existence of polynilpotent civering groups of a polynilpotent group

On a conjecture of a bound for the exponent of the Schur multiplier of finite p-groups

The relative Schur multiplier with algebraic topological approach