Search Results - "Mashayekhy, B."
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On the Topological Fundamental Groups of Quotient Spaces
Published in Ukrainian mathematical journal (01-05-2014)“…Let p : X → X/A be a quotient map, where A is a subspace of X . We study the conditions under which p ∗ (π 1 qtop ( X , x 0 )) is dense in π 1 qtop ( X / A…”
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Small loop transfer spaces with respect to subgroups of fundamental groups
Published in Topology and its applications (01-12-2017)“…Let H be a subgroup of π1(X,x0). In this paper, we extend the concept of X being SLT space to H-SLT space at x0. First, we show that the fibers of the endpoint…”
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Subgroup Theorems for the Baer-Invariant of Groups
Published in Journal of algebra (01-08-1998)“…M. R. Jones and J. Wiegold (J. London Math. Soc. (2)6, 1973, 738) have shown that ifGis a finite group with a subgroupHof finite indexn, then thenth power of…”
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On the order of the Schur multiplier of a pair of finite p-groups II
Published in International journal of group theory (01-09-2013)“…Let G be a finite p-group and N be a normal subgroup of G with |N|=p^n and |M|=p^m. A result of Ellis (1998) shows that the order of the Schur multiplier of…”
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On varietal capability of Infinite direct products of groups
Published in International journal of group theory (01-09-2012)“…Recently, the authors gave some conditions under which a direct product of finitely many groups is V-capable if and only if each of its factors is V-capable…”
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Some Notes on the Baer-Invariant of a Nilpotent Product of Groups
Published in Journal of algebra (01-01-2001)“…W. Haebich (1972, Bull. Austral. Math. Soc.7, 279–296) presented a formula for the Schur multiplier of a regular product of groups. In this paper, first, it is…”
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On Strong Small Loop Transfer Spaces Relative to Subgroups of Fundamental Groups
Published 04-11-2017“…Let $H$ be a subgroup of the fundamental group $\pi_{1}(X,x_{0})$. By extending the concept of strong SLT space to a relative version with respect to $H$,…”
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On the Order of Nilpotent Multipliers of Finite p-Groups
Published in Communications in algebra (01-06-2005)“…Let G be a finite p-group of the order p n . Berkovich ( 1991 ) proved that G is an elementary abelian p-group if and only if the order of its Schur…”
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Small Loop Transfer Spaces with Respect to Subgroups of Fundamental Groups
Published 24-04-2017“…Let $H$ be a subgroup of $\pi_{1}(X,x_{0})$. In this paper, we extend the concept of $X$ being SLT space to $H$-SLT space at $x_0$. First, we show that the…”
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On Subgroup Topologies on Fundamental Groups
Published 03-07-2018“…It is important to classify covering subgroups of the fundamental group of a topological space using their topological properties in the topologized…”
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The Baer-invariant of a semidirect product
Published in Indagationes mathematicae (22-12-1997)“…In 1972 K.I. Tahara [7,2, Theorem 2.2.5], using cohomological methods, showed that if a finite group G = T ⋉ N is the semidirect product of a normal subgroup N…”
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The Higher Schur-Multiplicator of Certain Classes of Groups
Published 24-08-2011“…Southeast Asian Bulletin of Mathematics, 27 (2003) 121-128 The paper is devoted to calculating the higher Schur-multiplicator of certain classes of groups with…”
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