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annihilating submodule graph for modules
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نویسنده
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safaeeyan saeed
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منبع
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transactions on combinatorics - 2018 - دوره : 7 - شماره : 1 - صفحه:1 -12
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چکیده
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Let r be a commutative ring and m an r-module. in this article, we introduce a new generalization of the annihilating-ideal graph of commutative rings to modules. the annihilating submodule graph of m, denoted by g(m), is an undirected graph with vertex set a∗(m) and two distinct elements n and k of a∗(m) are adjacent if n^∗k=0. in this paper we show that g(m) is a connected graph, diam(g(m))≤3, and gr(g(m))≤4 if g(m) contains a cycle. moreover, g(m) is an empty graph if and only if ann(m) is a prime ideal of r and a^∗(m)≠s(m)∖{0} if and only if m is a uniform r-module, ann(m) is a semi-prime ideal of r and a∗(m)≠s(m)∖{0}. furthermore, r is a field if and only if g(m) is a complete graph, for every m∈r−mod. if r is a domain, for every divisible module m∈r−mod, g(m) is a complete graph with a^∗(m)=s(m)∖{0}. among other things, the properties of a reduced r-module m are investigated when g(m) is a bipartite graph.
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کلیدواژه
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module ,annihilating submodule graph ,complete graph.
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آدرس
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university of yasouj, department of mathematical sciences, ایران
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پست الکترونیکی
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safaeeyan@yu.ac.ir
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Authors
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