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the fourth and fifth laplacian coefficients of some rooted trees
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نویسنده
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arabzadeh mahsa ,fath-tabar gholam-hossein ,rasoli hamid ,tehranian abolfazl
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منبع
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mathematics interdisciplinary research - 2019 - دوره : 4 - شماره : 2 - صفحه:183 -192
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چکیده
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The laplacian characteristic polynomial of an n-vertex graph g has the form f (g, x) = xn + ),n−1 lixn−i. in this paper, the fourth and fifth lapla-cian coefficients of f (t (k, t), x) will be computed, where t (k, t) is a rooted tree with degree sequence k, k, . . . , k, 1, 1, . . . , 1.
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کلیدواژه
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graph ,eigenvalue ,laplacian coefficient ,rooted tree
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آدرس
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islamic azad university, science and research branch, department of mathematics, iran, university of kashan, faculty of mathematical sciences, department of pure mathematics, iran, islamic azad university, science and research branch, department of mathematics, iran, islamic azad university, science and research branch, department of mathematics, iran
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پست الکترونیکی
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tehranian@srbiau.ac.ir
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Authors
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