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Computing Two Types of Geometric-Arithmetic Indices of Some Benzenoid Graphs
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نویسنده
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loghman amir ,saheli mahboubeh
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منبع
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journal of discrete mathematics and its applications - 2023 - دوره : 8 - شماره : 3 - صفحه:171 -175
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چکیده
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The well-known geometric-arithmetic index is a famous topological index was defined as $ga(g)=sum{uvin e(g)}frac{2sqrt{d_ud_v}}{d_u+d_v}}$, where d_u = deg(u) in g. by replacing δ_u = σ_v∼u d_v instead of d_u in ga(g), we have a new version of this index that defined as ga_5(g) = sum{uvin e(g)}frac{2sqrt {delta_udelta_v}}{delta_u+delta_v}}$. in this paper, we present exact formulas of these indices for some benzenoid graphs.
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کلیدواژه
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Connected graph ,benzenoid graph ,geometric-arithmetic index ,GA_5 index
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آدرس
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payame noor universtiy, department of mathematics, Iran, payame noor universtiy, department of mathematics, Iran
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Authors
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