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some new bounds on the modified first zagreb index
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نویسنده
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milovanović igor z. ,milovanović emina i. ,matejić marjan m. ,ali akbar
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منبع
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communications in combinatorics and optimization - 2023 - دوره : 8 - شماره : 1 - صفحه:13 -21
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چکیده
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Let g be a graph containing no isolated vertices. for the graph g, its modified first zagreb index is defined as the sum of reciprocals of squares of vertex degrees of g. this article provides some new bounds on the modified first zagreb index of g in terms of some other wellknown graph invariants of g. from the obtained bounds, several known results follow directly.
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کلیدواژه
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zagreb index ,modified first zagreb index ,inverse degree ,bounds
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آدرس
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university of nis, faculty of electronic engineering, serbia, university of nis, faculty of electronic engineering, serbia, university of nis, faculty of electronic engineering, serbia, university of hail, faculty of science, department of mathematics, saudi arabia
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پست الکترونیکی
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akbarali.maths@gmail.com
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Authors
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