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maximizing the indices of a class of signed complete graphs
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نویسنده
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kafai navid ,heydari farideh
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منبع
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communications in combinatorics and optimization - 2024 - دوره : 9 - شماره : 1 - صفحه:169 -175
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چکیده
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The index of a signed graph is the largest eigenvalue of its adjacency matrix. let $mathfrak{u}_{n,k,4}$ be the set of all signed complete graphs of order $n$ whose negative edges induce a unicyclic graph of order k and girth at least $4$. in this paper, we identify the signed graphs achieving the maximum index in the class $mathfrak{u}_{n,k,4}$.
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کلیدواژه
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index ,signed complete graph ,unicyclic
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آدرس
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islamic azad university, karaj branch, department of mathematics, iran, islamic azad university, karaj branch, department of mathematics, iran
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پست الکترونیکی
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f-heydari@kiau.ac.ir
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Authors
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