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检索条件"作者=Kinkar Ch.DAS"
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On a Novel Eccentricity-based Invariant of a Graph
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Acta Mathematica Sinica,English Series 2016年 第12期32卷 1477-1493页
作者: Ke Xiang XU kinkar ch.das Ayse Dilek MADEN College of Science Nanjing University of Aeronautics & Astronautics Department of Mathematics Sungkyunkwan University Department of Mathematics Faculty of ScienceSelcuk University
In this paper, for the purpose of measuring the non-self-centrality extent of non-self- centered graphs, a novel eccerttricity-based invariant, named as non-self-centrality number (NSC num- ber for short), of a grap... 详细信息
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Sum-connectivity index of a graph
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Frontiers of Mathematics in china 2016年 第1期11卷 47-54页
作者: kinkar ch. das Sumana das Bo ZHOU Department of Mathematics Sungkyunkwan University Suwon 440-746 Korea School of Information and Communication Engineering Sungkyunkwan UniversitySuwon 440-746 Korea Department of Mathematics South China Normal University Guangzhou 510631 China
Let G be a simple connected graph, and let di be the degree of its i-th vertex. The sure,connectivity index of the graph G is defined as χ(G) =∑vivj∈E(G)(di+dj)-1/*** discuss the effect onχ(G)of inserting... 详细信息
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Zagreb indices of graphs
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Frontiers of Mathematics in china 2015年 第3期10卷 567-582页
作者: kinkar ch. das Kexiang XU Junki NAM Department of Mathematics Sungkyunkwan University Suwon 440-746 Korea College of Science Nanjing University of Aeronautics & Astronautics Nanjing 210016China
The first Zagreb index M1 (G) is equal to the sum of squares of the degrees of the vertices, and the second Zagreb index M2 (G) is equal to the sum of the products of the degrees of pairs of adjacent vertices of t... 详细信息
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