Title: Laplacian Spectrum of non-commuting graphs of finite groups,
Abstract: In this paper, we compute the Laplacian spectrum of non-commuting graphs of
some classes of finite non-abelian groups. Our computations reveal that the
non-commuting graphs of all the groups considered in this paper are L-integral.
We also obtain some conditions on a group $G$ so that its non-commuting graph
is L-integral.