Results 61 to 70 of about 67,270 (298)
The Aα-Spectral Radii of Graphs with Given Connectivity
Mathematics, 2019 The A α -matrix is A α ( G ) = α D ( G ) + ( 1 − α ) A ( G ) with α ∈ [ 0 , 1 ] , given by Nikiforov in 2017, where A ( G ) is adjacent matrix, and D ( G ) is its ...
Chunxiang Wang, Shaohui Wang
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Albertson (Alb) spectral radii and Albertson (Alb) energies of graph operation
Frontiers in Chemistry, 2023 The sum of the absolute eigenvalues of the adjacency matrix make up graph energy. The greatest absolute eigenvalue of the adjacency matrix is represented by the spectral radius of the graph.
Muhammad Mobeen Munir, Urwah Tul Wusqa
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Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective To determine whether myelin‐sensitive quantitative MRI reveals microstructural abnormalities in normal‐appearing cortex (NACtx) in myelin oligodendrocyte glycoprotein antibody–associated disease (MOGAD), indicating that conventional MRI underestimates remission residual cortical injury.
Valentina Camera +20 more
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Unbalanced unicyclic and bicyclic graphs with extremal spectral radius [PDF]
, 2021 summary:A signed graph $\Gamma $ is a graph whose edges are labeled by signs. If $\Gamma $ has $n$ vertices, its spectral radius is the number $\rho (\Gamma ) := \max \{ | \lambda _i(\Gamma ) | \colon 1 \leq i \leq n \}$, where $\lambda _1(\Gamma ) \geq \
Brunetti, Maurizio +2 more
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On the Spectral Radius and the Genus of Graphs
Journal of Combinatorial Theory, Series B, 1995 Let \(G\) be a graph of genus \(g\) and let \(r(G)\) be the largest eigenvalue of the adjacency matrix of \(G\). The author proves that \(r(G)\leq(6| V(G)|+12g-6)^{1/2}\). The bound is slightly improved in the case of some small genus surfaces.
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Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Multisystemic smooth muscle dysfunction syndrome (MSMDS) is an ultra‐rare, ACTA2‐related disorder characterized by severe cerebrovascular disease, aortic aneurysms, and smooth muscle dysfunction. Using molecular dynamics simulations and in silico drug screening, we identified that sapropterin dihydrochloride (Kuvan) is a candidate capable of ...
Moran Hausman‐Kedem +9 more
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A spectral method for discriminating thermodynamic phase and retrieving cloud optical thickness and effective radius using transmitted solar radiance spectra [PDF]
Atmospheric Measurement Techniques, 2015 A new retrieval scheme for cloud optical thickness, effective radius, and thermodynamic phase was developed for ground-based measurements of cloud shortwave solar spectral transmittance.
S. E. LeBlanc +3 more
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Rainbow Hamiltonicity and the spectral radius
Discrete MathematicsLet $\mathcal{G}=\{G_1,\ldots,G_n \}$ be a family of graphs of order $n$ with the same vertex set. A rainbow Hamiltonian cycle in $\mathcal{G}$ is a cycle that visits each vertex precisely once such that any two edges belong to different graphs of $\mathcal{G}$.
Yuke Zhang, Edwin R. van Dam
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Bounds for the Spectral Radius of a Matrix [PDF]
Mathematics of Computation, 1965 obtain a sequence of bounds for p(A ) in terms of p(f A' I) (r = 1, 2, ) which are less than or equal to p( l A j) and converge to p(A ). In this manner we are partially accounting for the effect on p(A) of the phases of the ai,. In Section II we derive bounds for p(A) in terms of the Frobenius norm of A.
Derzko, N. A., Pfeffer, A. M.
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Arthritis Care &Research, EarlyView.Objective Cam morphology, which is a significant risk factor for hip osteoarthritis, is commonly quantified by the alpha angle (AA). This study aims to explore the potential of the triangular index ratio (TIR) to quantify cam morphology on anteroposterior radiographs by assessing the association between TIR‐defined cam morphology and the development of
Jinchi Tang +7 more
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