F-index and hyper-Zagreb index of four new tensor products of graphs and their complements

被引:6
|
作者
Basavanagoud, B. [1 ]
Barangi, Anand P. [1 ]
机构
[1] Karnatak Univ, Dept Math, Dharwad 580003, Karnataka, India
关键词
Tensor product; hyper-Zagreb index; F-index; TOPOLOGICAL INDEXES; MOLECULAR-ORBITALS; 1ST; OPERATIONS; PI;
D O I
10.1142/S1793830919500393
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
For a molecular graph G, the F-index or forgotten topological index is defined as the sum of cubes of degree of all vertices of the graph and the hyper-Zagreb index is equal to the sum of square of sum of degree of all adjacent vertices of the graph. In this paper, we obtain F-index, hyper-Zagreb index and their coindices of F-tensor products (four new tensor products based on transformations of a graph) of graphs and their complements.
引用
收藏
页数:14
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