Results 41 to 50 of about 517 (82)
The domination number and the least $Q$-eigenvalue [PDF]
, 2013 A vertex set $D$ of a graph $G$ is said to be a dominating set if every vertex of $V(G)\setminus D$ is adjacent to at least a vertex in $D$, and the domination number $\gamma(G)$ ($\gamma$, for short) is the minimum cardinality of all dominating sets of $
Guo, Shu-Guang +3 more
core
Laplacian Distribution and Domination [PDF]
, 2016 Let $m_G(I)$ denote the number of Laplacian eigenvalues of a graph $G$ in an interval $I$, and let $\gamma(G)$ denote its domination number. We extend the recent result $m_G[0,1) \leq \gamma(G)$, and show that isolate-free graphs also satisfy $\gamma(G) \
Cardoso, Domingos M. +2 more
core +2 more sources
Laplacian spectral characterization of roses
, 2017 A rose graph is a graph consisting of cycles that all meet in one vertex. We show that except for two specific examples, these rose graphs are determined by the Laplacian spectrum, thus proving a conjecture posed by Lui and Huang [F.J. Liu and Q.X. Huang,
Belardo +15 more
core +2 more sources
Distance signless Laplacian eigenvalues, diameter, and clique number [PDF]
Discrete Mathematics Letters, 2022 Saleem Khan, Shariefuddin Pirzada
doaj +1 more source
Novel descriptors for the prediction of molecular properties
Open ChemistryMolecular descriptors are fundamental to the fields of cheminformatics, drug discovery, and materials science, serving as quantitative representations of molecular structures that facilitate the prediction of various properties and activities.
Nizami Abdul Rauf +3 more
doaj +1 more source
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
Universal Adjacency Matrices with Two Eigenvalues [PDF]
AMS Mathematics Subject Classification: 05C50.Adjacency matrix;Universal adjacency matrix;Laplacian matrix;signless Laplacian;Graph spectra;Eigenvalues;Strongly regular ...
Haemers, W.H., Omidi, G.R.
core +1 more source
Eigenvalue-based entropy in directed complex networks. [PDF]
PLoS One, 2021 Sun Y, Zhao H, Liang J, Ma X.
europepmc +1 more source
Albertson (Alb) spectral radii and Albertson (Alb) energies of graph operation. [PDF]
Front Chem, 2023 Munir MM, Wusqa UT.
europepmc +1 more source
Strengthening container shipping network connectivity during COVID-19: A graph theory approach. [PDF]
Ocean Coast Manag, 2022 Pan JJ, Zhang YF, Fan B.
europepmc +1 more source