Results 111 to 120 of about 2,786 (218)

Integral equation analysis of complex (M)MIC-structures with optimized system matrix decomposition and novel quadrature techniques [PDF]

open access: yesAdvances in Radio Science, 2004
Using integral equation methods for the analysis of complex (M)MIC structures, the computation and storage effort for the solution of the linear systems of equations with their fully populated matrices still forms the main bottleneck.
T. Vaupel, V. Hansen
doaj  

An Introduction to Krylov Subspace Methods

open access: yes, 2018
Nowadays, many fields of study are have to deal with large and sparse data matrixes, but the most important issue is finding the inverse of these matrixes. Thankfully, Krylov subspace methods can be used in solving these types of problem. However, it is difficult to understand mathematical principles behind these methods.
openaire   +2 more sources

Regularization properties of Krylov subspace methods

open access: yes, 2019
The aim of this thesis is to study and describe regularizing properties of iterative Krylov subspace methods for finding a solution of linear algebraic ill- posed problems contaminated by white noise. First we explain properties of this kind of problems,
Kučerová, Andrea
core  

Adaptive Solution of Infinite Linear Systems by Krylov Subspace Methods [PDF]

open access: yes, 2003
In this paper we consider the problem of approximating the solution of infinite linear systems, finitely expressed by a sparse coefficient matrix. We analyze various algorithms based on Krylov subspace methods embedded in an adaptive enlargement scheme ...
Romani, Francesco   +3 more
core  

Approximate Exponential Integrators for Time-Dependent Equation-of-Motion Coupled Cluster Theory. [PDF]

open access: yesJ Chem Theory Comput, 2023
Williams-Young DB   +3 more
europepmc   +1 more source

High-order Krylov-Newton and

open access: yes, 2007
Keywords: secant methods, Krylov subspace methods, nonlinear equations, Newton's method, Broydcn's method AMS(MOS) subject classification: 3504, 35Q35, 35M10 ...
Fast Krylov-Secant Methods   +7 more
core  

Equivalence between the combined approximations technique and Krylov subspace methods

open access: yes, 2002
The objective of this Note is to examine the equivalence between the CA technique and Krylov subspace methods. It is shown that the CA technique is a preconditioned Krylov subspace method.
Nair, Prasanth B.
core  

Preconditioned Generalized Minimal Residual Method for Solving Fractional Advection-Diffusion Equation

open access: yesپژوهش‌های ریاضی, 2019
Introduction Fractional differential equations (FDEs)  have  attracted much attention and have been widely used in the fields of finance, physics, image processing, and biology, etc.
, , ,
doaj  

Fast sampling from a Gaussian Markov random field using Krylov subspace approaches

open access: yes, 2008
Many applications in spatial statistics, geostatistics and image analysis require efficient techniques for sampling from large Gaussian Markov random fields (GMRFs).
Simpson, Daniel P.   +2 more
core  

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