Extremal Laplacian-energy-like invariant of graphs with given matching number
Extremal Laplacian-energy-like invariant of graphs with given matching number
Let G be a graph of order n with Laplachian spectrum μ1 ≥ μ2 ≥ · · · ≥ μn. The Laplacian-energy like invariant of graph G, LEL for short, is defined as: LEL(G) = . In this note, the extremal (maximal and minimal) LEL among all the connected graphs with …