Ming-Zhu Chen, A-Ming Liu, Xiao-Dong Zhang
Published 2021-02-20Version 1
In this paper, we present two sharp upper bounds for the spectral radius of (bipartite) graphs with forbidden a star forest and characterize all extremal graphs. Moreover, the minimum least eigenvalue of the adjacency matrix of graph with forbidden a star forest and all extremal graphs for graphs are obtained.
Comments: 15 pages
Journal: Discrete Mathematics;2021
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