Relationship between Laplacian and signless Laplacian coefficients of polythiophene

M. Arabzadeh, G.H. Fath-Tabar, H. Rasouli, A. Tehranian

Finding coefficients of Laplacian and signless Laplacian characteristic polynomial of graphs is an algebraic graph theory problem that scientists have sought to answer it for these years. The purpose of this article is finding relationships between coefficients of Laplacian and signless Laplacian characteristic polynomial of polythiophenes. 

Advanced Studies: Euro-Tbilisi Mathematical Journal, Vol. 16,  supplement issue 1 (2023), pp. 89-95