In this paper, we present an explicit formula for

the Baer invariant of a finitely generated abelian group with

respect to the variety of polynilpotent groups of class row

(c_1, dots ,c_t) , { cal N}_{c_1, dots ,c...

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In this paper we prove a similar result for the centre by centre by $w$

variety of groups, where $w$ is any outer commutator word. Then

using a result of M.R.R.Moghaddam [6], we will be able to deduce

a result of Schur...

Covering Groups With Respect to Two Varieties of Groups...

The higher Schur-multiplicator of certain classes of groups

-542) to

the variety of groups defined by a set of outer commutator words. In this paper

we generalize the above results to any variety of groups. Then we introduce the

category ${\\\\cal PME}(G,{\\\\cal V})$ and using the above...

The physical properties of three common Iranian varieties of melon seeds have been evaluated as a function of seed moisture content varying from 4.75 to 47.6, from 5.02 to 46.81, and from 4.55 to 45.22% (w.b.) for Ghermez, Kolaleh and Sarakhsi...

agroecosystems [1]. In order to investigate the effect of biological fertilizers on the growth indices, yield and yield

components of three sesame cultivars (Sesamum indicum L.) and evaluation effects of them on local mass and revised

varieties (Kalat...

Let cal V be a variety of groups defined by the set of laws V , it is shown

that every group G possesses a uniquely determined

subgroup (V^*)^*(G) of the marginal subgroup V^*(G) , which is minimal

subject to being...