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math.CO2023
Extremal problems for disjoint graphs
Zhenyu Ni, Jing Wang, Liying Kang
For a simple graph , let and be the set of graphs with the maximum number of edges and the set of graphs with the maximum spectral ra…
math.CO2023
Spectral extremal graphs for edge blow-up of star forests
Jing Wang, Zhenyu Ni, Liying Kang +1
The edge blow-up of a graph , denoted by , is obtained by replacing each edge of with a clique of order , where the new vertices of the cliques are all distinc…