In this paper, we use one of the famous algebraic topological tools, called

Mayer-Vietoris sequence, to find a necessary condition for capability of groups. Also,

we try to generalize our main results, for ...

In this talk using a relationship between the Shur multiplier of a group G the fundamental group and the second homology group of the E-M spaces of G, we present new proves for some famous properties of the Shur multiplier ...

M. R. R. Moghaddam (Monatsh. Math. 90 (1980) 37-43.) showed that the

Baer invariant commutes with the direct limit of a directed system

of groups. In this paper, using the generalization of Schur s

formula ...

In this paper, using a relation between Schur multipliers of

pairs and triples of groups, the fundamental group and homology groups

of a homotopy pushout of Eilenberg-MacLane spaces, we present among

other ...

In this paper we give some conditions in which a direct product of groups

is V−capable if and only if each of its factors is V−capable for some varieties V.

Moreover, we give some conditions in which a direct ...

In this paper, we study the weak coarse shape equivalences. First, we define

paradominations and then we give a characterization of them, for uniformly movable

pointed continuum spaces. Also, we show that a ...

در این مقاله ابتدا انتهای گراف‌‌های موضعا متناهی را به عنوان رده هم‌ارزی مسیرهای نامتناهی در گراف معرفی می‌کنیم. سپس انتهای گروه‌های متناهی تولید شده را بازگو می‌کنیم که با استفاده از گراف کیلی تعریف می‌شود. ثابت شده است ...

In this paper we give some conditions in which a direct product

of groups is V-capable if and only if each of its factors is V-capable for

some varieties V.

In this talk, we introduce a topological interpretation for presentation of groups

which is presented by Brent Everit in 2003. In particular, Using simplicial complexes and

topological methods, we establishsome ...

In this talk, we deal with the solvable groups and we use topological methods to prove some

theorems in this field. In particular, we use Cayley graphs to construct suitable 2-complexes corresponding

to the ...