Azarbaijan Shahid Madani UniversityCommunications in Combinatorics and Optimization2538-21288220230601More on the bounds for the skew Laplacian energy of weighted digraphs3793901437310.22049/cco.2022.27357.1244ENBilal AhmadChatDepartment of Mathematical Sciences
IUST Awantipora Pulwama Jammu and Kashmir IndiaUma TulSameeInstitute of Technology
University of KashmirShariefuddinPirzadaDepartment of Mathematics, HazratbalJournal Article20210802Let $mathscr{D}$ be a simple connected digraph with $n$ vertices and $m$ arcs and let $W(mathscr{D})=mathscr{D},w)$ be the weighted digraph corresponding to $mathscr{D}$, where the weights are taken from the set of non-zero real numbers. Let $nu_1,nu_2, dots,nu_n$ be the eigenvalues of the skew Laplacian weighted matrix $widetilde{SL}W(mathscr{D})$ of the weighted digraph $W(mathscr{D})$. In this paper, we discuss the skew Laplacian energy $widetilde{SLE}W(mathscr{D})$ of weighted digraphs and obtain the skew Laplacian energy of the weighted star $W(mathscr{K}_{1, n})$ for some fixed orientation to the weighted arcs. We obtain lower and upper bounds for $widetilde{SLE}W(mathscr{D})$ and show the existence of weighted digraphs attaining these bounds. http://comb-opt.azaruniv.ac.ir/article_14373_7516a2473863a0383b257ba88adfeb19.pdf