Results 61 to 70 of about 502,287 (194)

The automatic solution of partial differential equations using a global spectral method [PDF]

, 2015
A spectral method for solving linear partial differential equations (PDEs) with variable coefficients and general boundary conditions defined on rectangular domains is described, based on separable representations of partial differential operators and ...
Olver, Sheehan, Townsend, Alex
core   +1 more source

Efficient time-splitting Hermite-Galerkin spectral method for the coupled nonlinear Schrödinger equations

Journal of Algorithms & Computational Technology, 2020
The paper focuses on efficient time-splitting Hermite-Galerkin spectral approximation of the coupled nonlinear Schrödinger equations on the whole line.
Qingqu Zhuang, Yi Yang
doaj   +1 more source

Improving approximate matrix factorizations for implicit time integration in air pollution modelling [PDF]

, 2000
For a long time operator splitting was the only computationally feasible way of implicit time integration in large scale Air Pollution Models. A recently proposed attractive alternative is Rosenbrock schemes combined with Approximate Matrix Factorization
Botchev, M.A., Verwer, J.G.
core   +3 more sources

Entanglement of random vectors

, 2006
We analytically calculate the average value of i-th largest Schmidt coefficient for random pure quantum states. Schmidt coefficients, i.e., eigenvalues of the reduced density matrix, are expressed in the limit of large Hilbert space size and for ...
Marko Žnidarič, Mehta M L, Oliveira R Dahlsten O C O Plenio M B, Prosen T Žnidarič M, Sommers H-J, Życzkowski K   +5 more
core   +1 more source

Splitting full matrix algebras over algebraic number fields

Journal of Algebra, 2012
Let K be an algebraic number field of degree d and discriminant D over Q. Let A be an associative algebra over K given by structure constants such that A is isomorphic to the algebra M_n(K) of n by n matrices over K for some positive integer n. Suppose that d, n and D are bounded.
Ivanyos, Gábor, Rónyai, Lajos, Schicho, Josef   +2 more
openaire   +2 more sources

A Two-Step Matrix-Splitting Iterative Method for Solving the Generalized Absolute Value Equation

Journal of Mathematics
In this paper, we present a two-step Newton-based matrix-splitting iteration method for solving the generalize absolute value equation. This method can produce a number of two-step Newton-based relaxation iteration algorithms with the right matrix ...
Lin Zheng, Yangxin Tang
doaj   +1 more source

Impact of twisting high-performance polyethylene fibre bundle reinforcements on the mechanical characteristics of high-strength concrete

Materiales de Construccion, 2019
The quasi-static and dynamic mechanical behaviours of the concrete reinforced by twisting ultra-high molecular weight polyethylene (UHMWPE) fibre bundles with different volume fractions have been investigated.
Y. Zhang, L. Yan, S. Wang, M. Xu
doaj   +1 more source

Adaptive high-order splitting schemes for large-scale differential Riccati equations [PDF]

, 2017
We consider high-order splitting schemes for large-scale differential Riccati equations. Such equations arise in many different areas and are especially important within the field of optimal control.
Stillfjord, Tony
core   +2 more sources

On regular splittings and graph compatible splittings of an M-matrix

Linear Algebra and its Applications, 1992
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

On general fixed point method based on matrix splitting for solving linear complementarity problem

Journal of Numerical Analysis and Approximation Theory, 2022
In this article, we introduce a modified fixed point method to process the large and sparse linear complementarity problem (LCP) and formulate an equivalent fixed point equation for the LCP and show the equivalence.
Bharat Kumar, Deepmala, A. K. Das
doaj