The Sombor index and coindex of two-trees
The Sombor index of a graph $ G $, introduced by Ivan Gutman, is defined as the sum of the weights $ \sqrt{d_G(u)^2+d_G(v)^2} $ of all edges $ uv $ of $ G $, where $ d_G(u) $ denotes the degree of vertex $ u $ in $ G $. The Sombor coindex was recently defined as $ \overline{SO}(G) = \sum_{uv\notin E...
Main Authors: | Zenan Du, Lihua You, Hechao Liu, Yufei Huang |
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Format: | Article |
Language: | English |
Published: |
AIMS Press
2023-06-01
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Series: | AIMS Mathematics |
Subjects: | |
Online Access: | https://www.aimspress.com/article/doi/10.3934/math.2023967?viewType=HTML |
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