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A nonsymmetric fictitious domain solver
The paper deals with a nonsymetric variant of a fictitious domain solver for numerical realization of elliptic problems with mixed boundary conditions....
BA - Obecná matematika
- 2006 •
- D
Rok uplatnění
D - Stať ve sborníku
Mesh independent superlinear PCG rates via compact - equivalent operators
of the preconditioned conjugate gradient (PCG) method for nonsymmetric elliptic problems of elliptic problems the superlinear convergence of the obtained PCG method is mesh of another suitable ellipti...
BA - Obecná matematika
- 2007 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Additive Schwarz preconditioner for the finite volume element discretization of symmetric elliptic problems
A symmetric and a nonsymmetric variant of the additive Schwarz preconditioner are proposed for the solution of a class of finite volume element discretization of the symmetric elliptic problem in two dimensions, with large ...
BA - Obecná matematika
- 2016 •
- Jx •
- Link
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Výsledek na webu
Orthogonal hp-FEM for Elliptic Problems Based on a Non-Affine Concept
. The procedure is extendable to nonsymmetric elliptic problems. Numerical examples includingIn this paper we propose and test a new non-affine concept of hierarchic higher-order finite elements (hp-FEM) suitable for symmet...
JA - Elektronika a optoelektronika, elektrotechnika
- 2006 •
- D
Rok uplatnění
D - Stať ve sborníku
A two-level method for nonsymmetric eigenvalue problems
this method discretizes the eigenvalue problem on a coarse grid and ostains an improved eigenvector (eigenvalue) approximation by solving only a linear problem on the fine grid ( or two linear problems for the case of eige...
BA - Obecná matematika
- 2005 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Equivalence between lowest-order mixed finite element and multi-point finite volume methods. Derivation, properties, and numerical experiments
for elliptic diffusion problems on simplicial meshes in two or three space dimensions. This method produces saddle-point problems for scalar and flux unknowns.We show how for a largeclass of problems, but in gener...
BA - Obecná matematika
- 2005 •
- D
Rok uplatnění
D - Stať ve sborníku
Limiting Accuracy of Segregated Solution Methods for Nonsymmetric Saddle Point Problems
Nonsymmetric saddle point problems arise in a wide variety of applications in computational science and engineering. The aim of this paper is to discuss numerical behavior of several nonsymmetric iterative methods applied f...
BA - Obecná matematika
- 2008 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
A diagonal preconditioner for singularly perturbed problems
Using wavelet discretization with a standard wavelet diagonal preconditioning for singularly perturbed two-point boundary value problems, one can observe that condition ϵ when a nonsymmetric part starts to dominate. ...
Pure mathematics
- 2017 •
- Jimp •
- Link
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
Výsledek na webu
Updating Preconditioners for Permuted Non-Symmetric Linear Systems
We consider the solution of a sequence of nonsymmetric linear systems arising from a supersonic model problem by exploiting triangular preconditioner updates. In addition, we demonstrate how the power of the updates can be enhanced ...
BA - Obecná matematika
- 2007 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Analysis of the Nonsymmetric Filament Wound Composite Model
This work deals with a deformation analysis of the thick-walled nonsymmetric filament wound composite models. The problem is solved using the semi-analytical method, anisotropic elasticity in curvilinear coordinates and the Fourier ...
JI - Kompositní materiály
- 2012 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
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