Results 81 to 90 of about 5,566,785 (118)

Transmission-Based Energies of Prime Coprime Graph for Integers Modulo Group

open access: yesScience and Technology Indonesia
Graphs are an excellent instrument that provides an algebraic structure for visualizing and interpreting molecule structures and characteristics. As a result, the problem statement arises regarding how we can interpret graphs with eigenvalues concerning
Mamika Ujianita Romdhini   +3 more
doaj   +1 more source

The sun graph is determined by its signless Laplacian spectrum

open access: yes, 2010
For a simple undirected graph G, the corresponding signless Laplacian matrix is defined as D(G) + A(G) in which D(G) and A(G) are degree matrix and adjacency matrix of G, respectively.
Mirzakhah, Maryam, Kiani, Dariush
core   +1 more source

Maxima of the signless Laplacian spectral radius for planar graphs

open access: yes, 2015
The signless Laplacian spectral radius of a graph is the largest eigenvalue of its signless Laplacian. In this paper, we prove that the graph $K_{2}\nabla P_{n-2}$ has the maximal signless Laplacian spectral radius among all planar graphs of order $n\geq
Yu, Guanglong   +2 more
core   +1 more source

Bounds for the signless laplacian energy

open access: yes
The energy of a graph G is the sum of the absolute values of the eigenvalues of the adjacency matrix of G. The Laplacian (respectively, the signless Laplacian) energy of G is the sum of the absolute values of the differences between the eigenvalues of ...
Gutman, I.   +4 more
core  

Graphs with maximum Laplacian and signless Laplacian Estrada index

open access: yes, 2016
© 2016 Elsevier B.V. All rights reserved. The Laplacian Estrada index (LEE) and the signless Laplacian Estrada index (SLEE) of a graph G are, respectively, the sum of the exponentials of the eigenvalues of the Laplacian and signless Laplacian matrix of G.
Medina, Luis   +3 more
core   +1 more source

Dissecting molecular network structures using a network subgraph approach. [PDF]

open access: yesPeerJ, 2020
Huang CH   +5 more
europepmc   +1 more source

BOUNDS FOR SIGNLESS LAPLACIAN SPECTRAL RADIUS

open access: yes, 2018
We consider weighted graphs, such as graphs where the edge weights are positive definite matrices of the same order in this paper. The signless Laplacian eigenvalues of a graph are the eigenvalues of the signless Laplacian matrix of a graph G.
Nurkahli, Semiha Basdas   +2 more
core  

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