Results 31 to 40 of about 1,422,540 (296)
On singularity and properties of eigenvectors of complex Laplacian matrix of multidigraphs
AKCE International Journal of Graphs and Combinatorics, 2023 In this article, we associate a Hermitian matrix to a multidigraph G. We call it the complex Laplacian matrix of G and denote it by [Formula: see text]. It is shown that the complex Laplacian matrix is a generalization of the Laplacian matrix of a graph.
Sasmita Barik +2 more
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THE G MATRIX UNDER FLUCTUATING CORRELATIONAL MUTATION AND SELECTION [PDF]
Evolution, 2007 Theoretical quantitative genetics provides a framework for reconstructing past selection and predicting future patterns of phenotypic differentiation. However, the usefulness of the equations of quantitative genetics for evolutionary inference relies on the evolutionary stability of the additive genetic variance-covariance matrix (G matrix). A fruitful
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Thermodynamic consistency for nuclear matter calculations [PDF]
, 2001 We investigate the relation between the binding energy and the Fermi energy and between different expressions for the pressure in cold nuclear matter. For a self-consistent calculation based on a $\Phi$ derivable $T-$matrix approximation with off-shell ...
Bozek, P., Czerski, P.
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Sign patterns of J-orthogonal matrices
Special Matrices, 2017 This paper builds upon the results in the article “G-matrices, J-orthogonal matrices, and their sign patterns", Czechoslovak Math. J. 66 (2016), 653-670, by Hall and Rozloznik.
Hall Frank J. +3 more
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Revisiting the Hugenholtz-Van Hove theorem in nuclear matter [PDF]
, 2002 An assessment of the magnitude of the rearrangement contribution to the Fermi energy and to the binding energy per particle is carried out in symmetric nuclear matter by extending the G-matrix framework.
A. Akmal +21 more
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Bulk properties of light deformed nuclei derived from a medium-modified meson-exchange interaction [PDF]
, 1996 Deformed Hartree-Fock-Bogoliubov calculations for finite nuclei are carried out. As residual interaction, a Brueckner G-matrix derived from a meson-exchange potential is taken. Phenomenological medium modifications of the meson masses are introduced. The
Adami +32 more
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In medium T matrix for neutron matter [PDF]
, 2002 We calculate the equation of state of pure neutron matter, comparing the G-matrix calculation with the in-medium T-matrix result. At low densities, we obtain similar energies per nucleon, however some differences appear at higher densities.
A. Akmal +25 more
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Hybridization of electromagnetic numerical methods through the G-matrix algorithm [PDF]
Optics Letters, 2008 For the sake of numerical performance, we hybridize two common approaches often used in electromagnetic computations, namely the finite-element method and the aperiodic Fourier modal method. To that end, we propose an extension of the classical S-matrix formalism to numerical situations, which requires handling different mathematical representations of
Hugonin, Jean-Paul +2 more
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EPR of the V4+ ion in single crystals of pyrovanadates β-Mg2V2O7, α-Zn2V2O7: Spin-Hamiltonian parameters [PDF]
Magnetic Resonance in Solids, 2018 The angular variation of V4+ electron paramagnetic resonance (EPR) line positions were recorded in single crystals of β-Mg2V2O7 and α-Zn2V2O7 at 120 K and 295 K in three mutually perpendicular planes in the temperature range from 120 to 295 K and at some
S.K. Misra, S.I. Andronenko
doaj
On α-adjacency energy of graphs and Zagreb index
AKCE International Journal of Graphs and Combinatorics, 2021 Let A(G) be the adjacency matrix and D(G) be the diagonal matrix of the vertex degrees of a simple connected graph G. Nikiforov defined the matrix of the convex combinations of D(G) and A(G) as for If are the eigenvalues of (which we call α-adjacency ...
S. Pirzada +3 more
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