On the Sum of Degree-Based Topological Indices of Rhombus-Type Silicate and Oxide Structures

Qi, Rong; Ali, Haidar; Babar, Usman; Liu, Jia‐Bao; Ali, Parvez

doi:10.1155/2021/1100024

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2022

2024

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Cited by 8 publications

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“…In [17], Liu et al determined some degree-based chemical invariants for octahedron networks. Qi et al [18] put forward computations of several degree-based chemical invariants for rhombus-type silicate and oxide structures. In [19], the authors investigated several degree-based invariants for planar octahedron networks and made comparison of obtained numerical results.…”

Section: Introductionmentioning

confidence: 99%

On Acyclic Structures with Greatest First Gourava Invariant

Imtiaz

Naseem

Arshad

et al. 2022

Journal of Chemistry

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Let ξ be a simple connected graph. The first Gourava index of graph ξ is defined as G O 1 ξ = ∑ μ η ∈ E ξ d μ + d η + d μ d η , where d μ indicates the degree of vertex μ . In this paper, we will find the upper bound of G O 1 ξ for trees of given diameter, order, size, and pendent nodes, by using some graph transformations. We will find the extremal trees and also present an ordering of these trees having this index in decreasing order.

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Section: Introductionmentioning

confidence: 99%