Results 161 to 170 of about 1,908 (194)
Some of the next articles are maybe not open access.

Shift-Invert Arnoldi's Method with Preconditioned Iterative Solves

SIAM Journal on Matrix Analysis and Applications, 2010
The authors consider the computation of a few eigenvectors and the corresponding eigenvalues of a large sparse nonsymmetric matrix using the shift-invert Arnoldi method with and without implicit restarts. They extend the relaxation strategy of \textit{V. Simoncini} [SIAM J. Numer. Anal. 43, 1155--1174 (2005; Zbl 1093.65037)] to the implicitly restarted
Mélina A Freitag, Alastair Spence
exaly   +3 more sources

Multiple Explicitly Restarted Arnoldi Method for Solving Large Eigenproblems

SIAM Journal of Scientific Computing, 2005
Summary: We propose a new approach for calculating some eigenpairs of large sparse non-Hermitian matrices. This method, called multiple explicitly restarted Arnoldi (MERAM), is particularly well suited for environments that combine different parallel programming paradigms.
Serge Petiton
exaly   +3 more sources

Laplacian Preconditioning for the Inverse Arnoldi Method

open access: yesCommunications in Computational Physics, 2015
Many physical processes are described by elliptic or parabolic partial differential equations. For linear stability problems associated with such equations, the inverse Laplacian provides a very effective preconditioner. In addition, it is also readily available in most scientific calculations in the form of a Poisson solver or an implicit diffusive ...
Laurette S. Tuckerman
openaire   +2 more sources

Computing a Partial Schur Factorization of Nonlinear Eigenvalue Problems Using the Infinite Arnoldi Method

open access: yesSIAM Journal on Matrix Analysis and Applications, 2014
The partial Schur factorization can be used to represent several eigenpairs of a matrix in a numerically robust way. Different adaptions of the Arnoldi method are often used to compute partial Schur factorizations.
Elias Jarlebring   +2 more
exaly   +3 more sources

An extended shift-invert residual Arnoldi method

Computational and Applied Mathematics, 2021
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Su-Feng Yue, Jian-Jun Zhang 0002
openaire   +1 more source

On a new variant of Arnoldi method for approximation of eigenpairs

Journal of Computational and Applied Mathematics, 2022
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Bo Feng, Gang Wu
openaire   +1 more source

A matrix analysis of Arnoldi and Lanczos methods

Numerische Mathematik, 1998
The author presents a matrix analysis of the Arnoldi and Lanczos methods for approximating eigenpairs of a non-normal matrix. A new relation between the matrix representation of the two methods is defined to relate the corresponding eigenvalues and eigenvectors.
openaire   +2 more sources

Propagation of nonparaxial beams with a modified Arnoldi method

Optics Letters, 2001
We have developed a modified Arnoldi method that includes a complex square-root approximation, which excels at modeling the propagation of highly diverging beams in various media. Simulations of one transverse dimensional beam with an ultranarrow width and of cylindrical Gaussian beams with various divergence angles reveal the strength of this ...
Q, Luo, C T, Law
openaire   +2 more sources

On Arnoldi Method Accelerating PageRank Computations

2010
PageRank is a very important ranking algorithm in web information retrieval or search engine. We present Power method with Arnoldi acceleration for the computation of Pagerank vector, which can take the advantage of both Power method and Arnoldi process. The description and implementation of the new algorithm are discussed in detail.
Guo-Jian Yin, Jun-Feng Yin
openaire   +1 more source

Using the Restricted-denominator Rational Arnoldi Method for Exponential Integrators [PDF]

open access: yesSIAM Journal on Matrix Analysis and Applications, 2011
In this paper we investigate some practical aspects concerning the use of the restricted-denominator rational Arnoldi method for the computation of the core functions of exponential integrators for parabolic problems.
NOVATI, PAOLO
exaly   +2 more sources

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