Vertex Degree Based Analysis for Donut Benzenoid System

The Euler Sombor index of a graph

“…In the mathematical and chemical literature, several dozen of such vertex-degree-based descriptors (graph invariants) have been considered [1][2][3], some of which found noteworthy chemical and pharmacological applications [4][5][6][7], such as first Zagreb (M 1 ), second Zagreb (M 2 ), Albertson (Alb), forgotten (F), Sombor (SO), and so forth.…”