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On the Commuting Graph of Some Non-Commutative Rings With Unity
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نویسنده
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Vatandoost E. ,Ramezani F.
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منبع
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Journal Of Linear And Topological Algebra - 2016 - دوره : 5 - شماره : 4 - صفحه:289 -294
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چکیده
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let r be a non-commutative ring with unity. the commuting graph of r denoted by γ(r), is a graph with a vertex set r z(r) and two vertices a and b are adjacent if and only if ab=ba. in this paper, we investigate noncommutative rings with unity of order p^n where p is prime and n ∈ {4,5}. it is shown that, γ(r) is the disjoint union of complete graphs. finally, we prove that there are exactly five commuting graphs of noncommutative rings with unity up to twenty vertices and they are 3k_2,3k_4,7k_2, k_2 u 2k_6 and 4k_2 u k_6.
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کلیدواژه
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Commuting Graphs ,Non-Commutative Rings ,Non-Connected Graphs
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آدرس
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Imam Khomeini International University, Department Of Basic Science, Iran, Imam Khomeini International University, Department Of Basic Science, Iran
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پست الکترونیکی
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f.ramezani988@gmail.com
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Authors
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