Extremal unicyclic and bicyclic graphs with respect to the -index
In the study of structure-dependency of the total -electron energy in 1972, it was shown that this energy depends on the degree based sum and , where is the degree of a vertex of under consideration molecular graph . Later on, the sum was named as first Zagreb index. An extensive research work has b...
Main Authors: | , , |
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Format: | Article |
Language: | English |
Published: |
Taylor & Francis Group
2017-04-01
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Series: | AKCE International Journal of Graphs and Combinatorics |
Subjects: | |
Online Access: | http://dx.doi.org/10.1016/j.akcej.2016.11.011 |