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Ramanujan Cayley graphs on sporadic groups
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نویسنده
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mehry shahram
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منبع
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journal of discrete mathematics and its applications - 2023 - دوره : 8 - شماره : 4 - صفحه:223 -237
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چکیده
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Let γ be a k−regular graph with the second maximum eigenvalue λ. then γ is said o be ramanujan graph if λ ≤ 2 √ k − 1. let g be a finite group and γ = cay(g,s) be a cayley graph related to g. the aim of this paper is to investigate the ramanujan cayley graphs of sporadic groups.
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کلیدواژه
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sporadic group ,character table ,Cayley graph ,eigenvalue
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آدرس
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malayer university, faculty of mathematical sciences and statistics, department of mathematics, Iran
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پست الکترونیکی
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shmehry@gmail.com
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Authors
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