Results 11 to 20 of about 8,535,805 (358)
A comparative study of topological entropy characterization and graph energy prediction for Marta variants of covalent organic frameworks [PDF]
Frontiers in ChemistryCovalent organic frameworks are a novel class of porous polymers, notable for their crystalline structure, intricate frameworks, defined pore sizes, and capacity for structural design, synthetic control, and functional customization.
Zahid Raza +3 more
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Seidel Switching and Graph Energy [PDF]
SSRN Electronic Journal, 2012 The energy of a graph Γ is the sum of the absolute values of the eigenvalues of the adjacency matrix of Γ. Seidel switching is an operation on the edge set of Γ. In some special cases Seidel switching does not change the spectrum, and therefore the energy. Here we investigate when Seidel switching changes the spectrum, but not the energy. We present an
W. Haemers
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Generalized $ABC$ Energy of Weighted Graphs [PDF]
Computer Science Journal of Moldova, 2021 In this work, weighted generalized $ABC$ matrix and weighted generalized $ABC$ energy of graphs are considered. Some upper and lower bounds are given for generalized $ABC$ energy of weighted graphs with positive definite matrix edge weights.
N. Feyza Yalcin
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Bounds on Energy and Laplacian Energy of Graphs [PDF]
Journal of the Indonesian Mathematical Society, 2017 Let G be simple graph with n vertices and m edges. The energy E(G) of G, denotedby E(G), is dened to be the sum of the absolute values of the eigenvalues of G. Inthis paper, we present two new upper bounds for energy of a graph, one in terms ofm,n and another in terms of largest absolute eigenvalue and the smallest absoluteeigenvalue.
Sridhara, G., Kanna, Rajesh M. R.
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On Eccentricity Version of Laplacian Energy of a Graph [PDF]
Mathematics Interdisciplinary Research, 2017 The energy of a graph G is equal to the sum of absolute values of the eigenvalues of the adjacency matrix of G, whereas the Laplacian energy of a graph G is equal to the sum of the absolute value of the difference between the eigenvalues of the Laplacian
Nilanjan De
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Some New Results on Various Graph Energies of the Splitting Graph [PDF]
Journal of Chemistry, 2019 The energy of a simple connected graph G is equal to the sum of the absolute value of eigenvalues of the graph G where the eigenvalue of a graph G is the eigenvalue of its adjacency matrix AG.
Zheng-Qing Chu +4 more
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Discrete Mathematics Letters, 2020 Summary: Let \(G\) be a graph of order \(n\) and size \(m\), and its eigenvalues \(\lambda_ i\), \(i= 1, \ldots, n\), be labeled so that \(\vert \lambda_1\vert \geq \vert\lambda_2\vert \geq \cdots \geq \vert\lambda_n\vert\). The energy \(E(G)\) of \(G\) is the sum of absolute values of its eigenvalues.
Ivan Gutman, Mohammad Reza Oboudi
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Energy of strong reciprocal graphs [PDF]
Transactions on Combinatorics, 2023 The energy of a graph $G$, denoted by $\mathcal{E}(G)$, is defined as the sum of absolute values of all eigenvalues of $G$. A graph $G$ is called reciprocal if $ \frac{1}{\lambda} $ is an eigenvalue of $G$ whenever $\lambda$ is an eigenvalue of $G ...
Maryam Ghahremani +3 more
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Randi�� Incidence Energy of Graphs [PDF]
Transactions on Combinatorics, 2014 11 ...
Gu, Ran, Huang, Fei, Li, Xueliang
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