Some Vertex/Edge-Degree-Based Topological Indices of -Apex Trees

Table 1

Some of the existing bond incident degree indices.

Function	Equation (2) gives	Notation
	First Zagreb index [14]
	Second Zagreb index [15]
	General Randić index [16,17]
	General zeroth–order Randić index [17,18]
	General sum–connectivity index [19]
	Natural logarithm of the multiplicative second Zagreb index [20]
	Variable sum exdeg index [21]
	Sum lordeg index [21]
	Augmented Zagreb index [22]
	General Platt index [23]
	Sombor index [24]