Upper Bounds for Randic Spread

被引:0
作者
Gomes, Helena [1 ,2 ]
Martins, Enide [1 ]
Robbiano, Maria [3 ]
San Martin, Bernardo [3 ]
机构
[1] Univ Aveiro, Dept Matemat, CIDMA Ctr Invest & Desenvolvimento Matemat & Apli, P-3810193 Aveiro, Portugal
[2] Escuela Super Educ Viseu, Dept Ciencias Exatas & Nat, Inst Politecn Viseu, Viseu, Portugal
[3] Univ Catolica Norte, Dept Matemat, Antofagasta 0610, Chile
关键词
ENERGY; MATRIX; GRAPHS;
D O I
暂无
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The Rancho spread of a simple undirected graph G, spr(R)(G), is equal to the maximal difference between two eigenvalues of the Rancho matrix, disregarding the spectral radius [Comes et al., MATCH Commun. Math. Comput. Chem. 72 (2014) 249-266]. Using a rank-one perturbation on the Randic matrix of G it is obtained a new matrix whose matricial spread coincide with spr(R)(G). By means of this result, upper bounds for spr(R)(G) are obtained.
引用
收藏
页码:267 / 278
页数:12
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