First and Second Zagreb Coindices for Chains of Cycles
نویسندگان
چکیده
—The graphs which are used in this paper simple, finite and undirected. The first second Zagreb indices for every non-adjacent vertices (also called coindices) dependent only on the degrees interspersed operations of addition multiplication, respectively, vertices. number edges incident vertex v a graph G is degree two u if it’s no common edge between them. In paper, we found coindices chains even cycles also, gave some examples.
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ژورنال
عنوان ژورنال: Ma?alla? al-r?fidayn li-?ul?m al-??sib?t wa-al-riy??iyy??
سال: 2023
ISSN: ['1815-4816', '2311-7990']
DOI: https://doi.org/10.33899/csmj.2023.179460