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arXiv 1806.02063math.CO
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第一变量Zagreb指数的新下界

New Lower Bounds for the First Variable Zagreb Index

Alvaro Martínez-Pérez, José M. Rodríguez

摘要:

本文的目的是获得一个大的拓扑指数族,包括第一个变量的萨格勒布指数$M_1^α$,新的尖锐的不等式,并描述了关于他们的极图的集合。我们的主要结果提供了下界这个家庭的拓扑指数只涉及最小和最大程度的图。这些不平等是新的,即使是第一萨格勒布,逆和被遗忘的指数。

英文摘要:

The aim of this paper is to obtain new sharp inequalities for a large family of topological indices, including the first variable Zagreb index $M_1^α$, and to characterize the set of extremal graphs with respect to them. Our main results provide lower bounds on this family of topological indices involving just the minimum and the maximum degree of the graph. These inequalities are new even for the first Zagreb, the inverse and the forgotten indices.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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