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NEW BOUNDS AND EXTREMAL GRAPHS FOR DISTANCE SIGNLESS LAPLACIAN SPECTRAL RADIUS
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نویسنده
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alhevaz abdollah ,baghipur maryam ,paul somnath
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منبع
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journal of algebraic systems - 2021 - دوره : 8 - شماره : 2 - صفحه:231 -250
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چکیده
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The distance signless laplacian spectral radius of a connected graph g is the largest eigenvalue of the distance signless laplacian matrix of g, defined as dq(g) = tr(g)+d(g), where d(g) is the distance matrix of g and tr(g) is the diagonal matrix of vertex transmissions of g. in this paper, we determine some new upper and lower bounds on the distance signless laplacian spectral radius of g and characterize the extremal graphs attaining these bounds.
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کلیدواژه
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Distance signless Laplacian matrix; spectral radius; extremal graph; transmission regular graph.
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آدرس
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shahrood university of technology, faculty of mathematical sciences, Iran, university of hormozgan, department of mathematics, Iran, tezpur university, department of applied sciences, India
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پست الکترونیکی
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somnath.paul60@gmail.com , som@tezu.ernet.in
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Authors
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