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相关论文: Some Inequalities for Nilpotent Multipliers of Fin…

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In this paper we present some inequalities for the order, the exponent, and the number of generators of the c-nilpotent multiplier (the Baer invariant with respect to the variety of nilpotent groups of class at most $c \geq 1$) of a…

群论 · 数学 2010-12-16 Behrooz Mashayekhy , Fahimeh Mohammadzadeh

In this article, we present an explicit formula for the $c$th nilpotent multiplier (the Baer invariant with respect to the variety of nilpotent groups of class at most $c\geq 1$) of the $n$th nilpotent product of some cyclic groups…

群论 · 数学 2011-05-17 Azam Hokmabadi , Behrooz Mashayekhy , Fahimeh Mohammadzadeh

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 $(c_1,...,c_t)$, ${\cal N}_{c_1,...,c_t}$. In particular, one can…

群论 · 数学 2011-03-29 Behrooz Mashayekhy , Mohsen Parvizi

The aim of this work is to find some exact sequences on the $c$- nilpotent multiplier of a group $G$. We also give an upper bound for the $c$- nilpotent multiplier of finite $p$-groups and give the explicit structure of groups whose take…

群论 · 数学 2021-05-21 Farangis Johari , Mohsen Parvizi , Peyman Niroomand

In this paper, we present an explicit structure for the Baer invariant of a free nilpotent group (the $n$-th nilpotent product of the infinite cyclic group, $\textbf{Z}\st{n}* \textbf{Z}\st{n}*... \st{n}*\textbf{Z}$) with respect to the…

群论 · 数学 2011-03-29 Mohsen Parvizi , Behrooz Mashayekhy

We present an explicit structure for the Baer invariant of a free $n$th nilpotent group (the $n$th nilpotent product of infinite cyclic groups, $\textbf{Z}\st{n}* \textbf{Z}\st{n}*...\st{n}*\textbf{Z}$) with respect to the variety ${\cal…

群论 · 数学 2011-03-29 Behrooz Mashayekhy , Mohsen Parvizi

In this paper, using a result of J. Burns and G. Ellis (Math. Z. 226 (1997) 405-28.), we prove that the $c$-nilpotent multiplier (the Baer-invariant with respect to the variety of nilpotent groups of class at most $c$, ${\cal N}_c$.) {\it…

群论 · 数学 2011-03-31 Behrooz Mashayekhy

In this paper, we determine the structure of the nilpotent multipliers of all pairs $(G,N)$ of finitely generated abelian groups where $N$ admits a complement in $G$. Moreover, some inequalities for the nilpotent multipliers of pairs of…

群论 · 数学 2021-04-02 Azam Hokmabadi , Fahimeh Mohammadzadeh , Behrooz Mashayekhy

In this paper, we are going to look at the $c$-nilpotent multiplier of a group $G$, ${\cal N}_cM(G)$, as a functor from the category of all groups, ${\cal G}roup$, to the category of all abelian groups, ${\cal A}b$, and focusing on some…

群论 · 数学 2011-03-31 Behrooz Mashayekhy , Mahboobeh Alizadeh Sanati

W.Haebich (Bull. Austral. Math. Soc., 7, 1972, 279-296) presented a formula for the Schur multiplier of a regular product of groups. In this paper first, it is shown that the Baer-invariant of a nilpotent product of groups with respect to…

群论 · 数学 2011-03-31 Behrooz Mashayekhy

In this paper, using the topological interpretation of the Baer invariant of a group $G$, $\mathcal{V}M(G)$, with respect to an arbitrary variety $\mathcal{V}$, we extend a result of Burns and Ellis (Math. Z. 226 (1997) 405-428) on the…

代数拓扑 · 数学 2014-04-04 Behrooz Mashayekhy , Hanieh Mirebrahimi , Zohreh Vasagh

This article is devoted to present an explicit formula for the $c$th nilpotent multiplier of nilpotent products of some cyclic groups $G={\bf {Z}}\stackrel{n_1}{*}{\bf {Z}}\stackrel{n_2}{*}...\stackrel{n_{t-1}}{*}{\bf…

群论 · 数学 2011-05-23 Azam Hokmabadi , Behrooz Mashayekhy , Fahimeh Mohammadzadeh

We present an explicit structure for the Baer invariant of a finitely generated abelian group with respect to the variety $[\mathfrak{N}_{c_1},\mathfrak{N}_{c_2}]$, for all $c_2\leq c_1\leq 2c_2$. As a consequence we determine necessary and…

群论 · 数学 2015-11-26 Mohsen Parvizi , Behrooz Mashayekhy

There has been a great importance in understanding the nilpotent multipliers of finite groups in recent past. Let a group $G$ be presented as the quotient of a free group $F$ by a normal subgroup $R$. Given a positive integer $c$, the…

群论 · 数学 2023-01-31 S. Aofi Al-Akbi , S. Hadi Jafari

The paper is devoted to finding a homomorphic image for the $c$-nilpotent multiplier of the verbal product of a family of groups with respect to a variety ${\mathcal V}$ when ${\mathcal V} \subseteq {\mathcal N}_{c}$ or ${\mathcal…

群论 · 数学 2010-12-09 Azam Hokmabadi , Behrooz Mashayekhy

Let $G$ be a finite $p$-group of order $p^n$. YA. G. Berkovich (Journal of Algebra {\bf 144}, 269-272 (1991)) proved that $G$ is elementary abelian $p$-group if and only if the order of its Schur multiplier, $M(G)$, is at the maximum case.…

群论 · 数学 2011-03-31 Behrooz Mashayekhy , Mahboobeh Alizadeh Sanati

Let p be a prime number. We give the explicit structure of 2- nilpotent multiplier for each finite 2-generator p-group of class two. Moreover, 2-capable groups in that class are characterized.

群论 · 数学 2021-09-14 F. Johari , A. Kaheni

Let $G$ be a $p$-group of nilpotency class $k$ with finite exponent $\exp(G)$ and let $m=\lfloor\log_pk\rfloor$. We show that $\exp(M^{(c)}(G))$ divides $\exp(G)p^{m(k-1)}$, for all $c\geq1$, where $M^{(c)}(G)$ denotes the c-nilpotent…

群论 · 数学 2014-04-04 Berooz Mashayekhy , Azam Hokmabadi , Fahimeh Mohammadzadeh

In this paper, we determine the behavior of the $c$-nilpotent multiplier of Lie algebras with respect to the direct sums. Then we give some results on the $c$-capability of the direct sum of finite dimensional Lie algebras.

环与代数 · 数学 2021-05-21 Farangis Johari , Peyman Niroomand , Mohsen Parvizi

In this paper we determine all finitely generated abelian groups which are varietal capable with respect to the variety of polynilpotent groups. This result is a vast generalization of the famous Baer's result about capability of finitely…

群论 · 数学 2010-12-02 Behrooz Mashayekhy , Mohsen Parvizi , Saeed Kayvanfar
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