Results 81 to 90 of about 502,287 (194)
Resonance- and Chaos-Assisted Tunneling
, 2005 We consider dynamical tunneling between two symmetry-related regular islands that are separated in phase space by a chaotic sea. Such tunneling processes are dominantly governed by nonlinear resonances, which induce a coupling mechanism between ``regular'
A. Mouchet +53 more
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The Pfaff lattice and skew-orthogonal polynomials
, 1999 Consider a semi-infinite skew-symmetric moment matrix, $m_{\iy}$ evolving according to the vector fields $\pl m / \pl t_k=\Lb^k m+m \Lb^{\top k} ,$ where $\Lb$ is the shift matrix.
Adler, M., Horozov, E., van Moerbeke, P.
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A Lie algebra view of matrix splittings
Linear Algebra and its ApplicationsIn this paper we use some basic facts from the theory of (matrix) Lie groups and algebras to show that many of the classical matrix splittings used to construct stationary iterative methods and preconditioniers for Krylov subspace methods can be interpreted as linearizations of matrix factorizations.
Michele Benzi, Milo Viviani
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The splitting method and Poincare's theorem: (II) - matrix, polynomial and language [PDF]
Computer Science Journal of Moldova, 2003 This paper is the continuation of the paper which appeared in the previous issue: we revisited Poincare's theorem in the light of the splitting method which was introduced by the author in [5], especially in the geometric aspect of the question. This
Maurice Margenstern
doaj
Nature Communications, 2019 Electrochemical water splitting is promising for sustainable energy, but relies on development of electrocatalysts for hydrogen evolution. Here the authors report nitrogen- and ruthenium-codoped carbon nanowires in which ruthenium atoms in a carbon ...
Bingzhang Lu +13 more
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Analysis of a unidirectional composite containing broken fibers and matrix damage [PDF]
An analytical solution is developed for the determination of the stresses and displacements in a unidirectional fiber-reinforced composite containing an arbitrary number of broken fibers as well as longitudinal yielding and splitting of the matrix.
George, J. G., Gross, R. S.
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Neutrinos with Zee-Mass Matrix in Vacuum and Matter
, 1994 Neutrino mass matrix generated by the Zee (radiative) mechanism has zero (in general, small) diagonal elements and a natural hierarchy of the nondiagonal elements.
International Centre for Theoretical Physics, Trieste (Italy) +2 more
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On regular splittings of an M-matrix
Linear Algebra and its Applications, 1989 Some results on regular splittings of M-matrices are proved. The study is motivated by a recent work of \textit{H. Schneider} [ibid. 58, 407-424 (1984; Zbl 0561.65020)]. It is shown, first, that if A is a nonsingular M-matrix and \(A=M-N\) is a regular splitting then this splitting is a graph compatible one, and if A is just an M-matrix but \(A=M-N ...
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Modified Sombor Spectral Radii and Modified Sombor Energies of Splitting and Shadow Graphs
Scientific Annals of Computer ScienceGutman et al. introduced Sombor and Modified Somber index because of the rapidly growing applications in chemistry and network analysis. Graph energy ε(G) and the spectral radius ℘(G) of graph G are essential components that are associated with the ...
Ahmad Bilal, Muhammad Mobeen Munir
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, 2009 Theory of exciton fine structure in semiconductor quantum dots and its dependence on quantum dot anisotropy and external lateral electric field is presented.
E. L. Ivchenko +6 more
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