Bounds on the α‐Distance Energy and α‐Distance Estrada Index of Graphs
Discrete Dynamics in Nature and Society, Volume 2020, Issue 1, 2020., 2020 Let G be a simple undirected connected graph, then Dα(G) = αTr(G) + (1 − α)D(G) is called the α‐distance matrix of G, where α ∈ [0,1], D(G) is the distance matrix of G, and Tr(G) is the vertex transmission diagonal matrix of G. In this paper, we study some bounds on the α‐distance energy and α‐distance Estrada index of G.
Yang Yang +3 more
wiley +1 more source
On some aspects of the generalized Petersen graph
Electronic Journal of Graph Theory and Applications, 2017 Let $p \ge 3$ be a positive integer and let $k \in {1, 2, ..., p-1} \ \lfloor p/2 \rfloor$. The generalized Petersen graph GP(p,k) has its vertex and edge set as $V(GP(p, k)) = \{u_i : i \in Zp\} \cup \{u_i^\prime : i \in Z_p\}$ and $E(GP(p, k)) = \{u_i ...
V. Yegnanarayanan
doaj +1 more source
Frontiers in PhysicsThe study centered on Quantitative Structure Property Relationship (QSPR) analysis with a focus on various graph energies, investigating drugs like Mefloquinone, Sertraline, Niclosamide, Tizoxanide, PHA-690509, Ribavirin, Emricasan, and Sofosbuvir ...
Ali Raza, Muhammad Mobeen Munir
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The signless Laplacian Estrada index of tricyclic graphs
, 2014 The signless Laplacian Estrada index of a graph $G$ is defined as $SLEE(G)=\sum^{n}_{i=1}e^{q_i}$ where $q_1, q_2, \ldots, q_n$ are the eigenvalues of the signless Laplacian matrix of $G$. In this paper, we show that there are exactly two tricyclic graphs with the maximal signless Laplacian Estrada index.
Nasiri, R. +4 more
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New lower bounds for the Estrada and Signless Laplacian Estrada Index of a Graph
, 2018 Let $G$ be a graph on $n$ vertices and $λ_1,λ_2,\ldots,λ_n$ its eigenvalues. The Estrada index of $G$ is defined as $EE(G)=\sum_{i=1}^n e^{λ_i}.$ In this work, using a different demonstration technique, new lower bounds are obtained for the Estrada index, that depends on the number of vertices, the number of edges and the energy of the graph is given ...
Aguayo, Juan L. +2 more
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Maximum signless Laplacian Estrada index of tetracyclic graphs
FilomatIn this study, we aim to determine the unique tetracyclic graph that maximizes the signless Laplacian Estrada index (SLEE) among all tetracyclic graphs. The SLEE of a graph ? is defined as the sum of the exponentials of its eigenvalues, expressed as follows: SLEE(?)=?n,i=1 esi, where s1, s2,...,sn are the eigenvalues of the signless Laplacian matrix ...
Palaniyappan Nithya +3 more
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Quantitative structure-properties relationship analysis of Eigen-value-based indices using COVID-19 drugs structure. [PDF]
Int J Quantum Chem, 2023 Rauf A, Naeem M, Hanif A.
europepmc +1 more source
Albertson (Alb) spectral radii and Albertson (Alb) energies of graph operation. [PDF]
Front Chem, 2023 Munir MM, Wusqa UT.
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On the signless Laplacian energy and signless Laplacian Estrada index of extremal graphs
Applied Mathematical Sciences, 2014 R. Binthiya, P. B. Sarasija
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Predictive modeling for physicochemical properties of β-lactam antibiotics through eigenvalue based topological indices and non linear regression techniques. [PDF]
Sci RepYuvaraj A +4 more
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