[PDF] Top 20 On the first variable Zagreb index
Has 10000 "On the first variable Zagreb index" found on our website. Below are the top 20 most common "On the first variable Zagreb index".
On the first variable Zagreb index
... The first variable Zagreb index of graph G is defined as ( ) = ∑ ∈ ( ) ( ) , where is a real number and d(v) is the degree of vertex ...this index in random increasing trees ... See full document
9
An Upper Bound on the First Zagreb Index in Trees
... [7] X. L. Li, I. Gutman, Mathematical Aspects of Randić-Type Molecular Structure Descriptors, Mathematical Chemistry Monograph 1, University of Kragujevac, 2006. [8] S. Nikolić, G. Kovačević, A. Miličević, N. Trinajstić, ... See full document
12
MAXIMAL GRAPHS OF THE FIRST REVERSE ZAGREB BETA INDEX
... Proof. Let n = 2r + 1. There are four kind of edges in L. The vertices of the first kind of edges have degree n 2 + 1 = r + 1 and and the reverse degree of these vertices are r + 1. The vertices of the second kind ... See full document
5
Extremal trees with respect to some versions of Zagreb indices via majorization
... the first general Zagreb index of G as follows ( ) = ∑ ∈ ( ) ( ) ...the first three smallest and largest values of the first general Zagreb index, where α is an integer or ... See full document
11
The multiply version of Zagreb indices of a family of molecular graph "polycyclic aromatic hydrocarbons (PAHS)"
... In this section, we focus on the structure of hydrocarbon structures and counting the First Multiple Zagreb index and Second Multiple Zagreb index of Polycyclic Aromatic Hydrocarbons ... See full document
5
Vol 8, No 2 (2017)
... modified first and second Zagreb indices, harmonic index and augmented Zagreb index for certain networks like silicate networks and honeycomb ... See full document
8
Note on Properties of First Zagreb Index of Graphs
... Throughout this paper graph means simple connected graphs. Let G be a connected graph with vertex and edge sets V(G) and E(G), respectively. As usual, the degree of a vertex u of G is denoted by deg(u) and it is defined ... See full document
5
The First and Second Zagreb Indices of Degree Splitting of Graphs
... Let G be simple graph. The first Zagreb index is the sum of squares of degree of vertices and second Zagreb index is the sum of the products of the degrees of pairs of[r] ... See full document
6
Multiplicative Connectivity Indices of Certain Nanotubes
... topological index is a numeric quantity from the structural graph of a ...compute first multiplicative Zagreb index, multiplicative hyper-Zagreb, general multiplicative Zagreb, ... See full document
8
Bounds on First Reformulated Zagreb Index of Graph
... In 1975, Milan Randi´c [16] proposed a structural descriptor, based on the end-vertex degrees of edges in a graph, called the branching index that later became the well-known Randi´c connectivity index. The ... See full document
11
Extremal trees with respect to the first and second reformulated Zagreb index
... the first reformulated Zagreb index of graphs with connectivity at most k and characterized the corresponding extremal ...on Zagreb and reformulated Zagreb indices of simple ... See full document
7
On Topological Indices of Circumcoronene Series of Benzenoid
... the first Zagreb index as the Multiplicative Zagreb Eccentricity index that introduced by Nilanjan De and ε(u) is the largest distance between u and any other vertex v of ...topological ... See full document
8
On Third Leap Zagreb Index of Some Generalized Graph Structures
... leap Zagreb indices and studied their ...the first leap Zagreb index of some graph operations ...computed first leap Zagreb index of some nano ...leap Zagreb ... See full document
6
On the forgotten topological index
... topological index namely, forgotten topological index and it is clearly stated that the forgotten index is a special case of the earlier much studied general first Zagreb ...F– ... See full document
12
The Hyper-Zagreb Index of Graph Operations
... HyperZagreb index. Example 1. In this example the HyperZagreb index of some well-known graphs are ...We first consider the complete graph K n ... See full document
8
The irregularity and total irregularity of Eulerian graphs
... irr(G) = ∑ ∈ ( ) |d (u) − d (v)| (1) In [6], Albertson gave some upper bounds on irregularity for trees, bipartite, and triangle-free graphs. Recall that the first Zagreb index M and the second ... See full document
11
New Arithmetic-Geometric Indices
... topological index or molecular structure ...reformulated first Zagreb index and the fifth arithmetic- geometric index of triangular benzenoid T n and hexagonal parallelogram P(m,n) ... See full document
8
EXTREMAL HYPER ZAGREB INDEX FOR TRICYCLIC GRAPHS
... the first hyper-Zagreb index in the set of all connected tricyclic ...graphs. First we intro- duced the transformations which strictly increases the first hyper-Zagreb ... See full document
10
Some new results on multiplicative topological indices
... Over the time, the multiplicative versions of the indices were also defined. Todeschini et al. [18] who introduced the multiplicative counterparts of the additive invariants of a graph lead to the definition of ... See full document
5
Some Invariants of Cartesian Product of a Path and a Complete Bipartite Graph
... Randić index, inverse Randić index, first and second Zagreb index, modified Zagreb index, Symmetric division index, Inverse sum index augmented Zagreb ... See full document
10
Related subjects