Results 121 to 130 of about 4,394,235 (151)

Modified Zagreb index and total domination in trees

Discrete Mathematics, Algorithms and Applications
Let [Formula: see text] be a simple connected graph. The modified first Zagreb index is denoted by [Formula: see text] is defined as [Formula: see text]. We present a lower bound for [Formula: see text] in terms of order and total domination number for trees and characterize the extremal trees attaining the bound.
H. Naresh Kumar, B. Senthilkumar, S. Balachandran, Yanamandram B. Venkatakrishnan   +3 more
openaire   +1 more source

Bounds on first reformulated Zagreb index of graph

2017
Summary: The first reformulated Zagreb index \(EM_1(G)\) of a simple graph \(G\) is defined as the sum of the terms \((d_u+d_v-2)^2\) over all edges \(uv\) of \(G\). In this paper, the various upper and lower bounds for the first reformulated Zagreb index of a connected graph interms of other topological indices are obtained.
Pattabiraman, K, Santhakumar, A
openaire   +1 more source

Complete Characterization of Chemical Trees with Maximal Augmented Zagreb Index

Journal of Applied Mathematics and Computation, 2023
Y. Shao, Wei Gao
semanticscholar   +1 more source

The balanced double star has maximum exponential second Zagreb index

Journal of combinatorial optimization, 2021
Roberto Cruz, Juan Monsalve, J. Rada
semanticscholar   +1 more source

Unicyclic and bicyclic graphs with maximum exponential second Zagreb index

Discrete Applied Mathematics, 2022
M. Eliasi
semanticscholar   +1 more source

The first Zagreb index, reciprocal degree distance and Hamiltonian-connectedness of graphs

Information Processing Letters, 2022
Mingqiang An
semanticscholar   +1 more source

Hyper Zagreb Index and Reduced Zagreb Index of Four New Operations of Graphs

Journal of Computer and Mathematical Sciences, 2018
J. Buragohain, A. Mahanta, A. Bharali
openaire   +1 more source

Multi-attribute decision-making using q-rung orthopair fuzzy Zagreb index

Artificial Intelligence Review
Yongsheng Rao, Saeed Kosari, Saira Hameed, Zulqarnain Yousaf   +3 more
semanticscholar   +1 more source

Open problem on the maximum exponential augmented Zagreb index of unicyclic graphs

Computational and Applied Mathematics
K. Das, Sourav Mondal, Da-yeon Huh
semanticscholar   +1 more source

New lower bounds for the first variable Zagreb index

Discrete Applied Mathematics, 2022
Alvaro Martinez-Perez, JOSÉ M Rodríguez   +1 more
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