Results 11 to 20 of about 52,764 (220)

Galerkin eigenvector approximations [PDF]

open access: yesMathematics of Computation, 2000
39 ...
openaire   +2 more sources

Adaptive Galerkin approximation algorithms for partial differential equations in infinite dimensions [PDF]

open access: yes, 2011
Space-time variational formulations of infinite-dimensional Fokker-Planck (FP) and Ornstein-Uhlenbeck (OU) equations for functions on a separable Hilbert space $H$ are developed.
Schwab, Christoph, Suli, Endre
core   +2 more sources

Pointwise best approximation results for Galerkin finite element solutions of parabolic problems [PDF]

open access: yes, 2016
In this paper we establish a best approximation property of fully discrete Galerkin finite element solutions of second order parabolic problems on convex polygonal and polyhedral domains in the $L^\infty$ norm.
Leykekhman, Dmitriy, Vexler, Boris
core   +1 more source

Galerkin Approximations and Conley Index

open access: yesJournal of Mathematical Analysis and Applications, 1994
The authors prove two stable theorems which show that the Rybakowski's extended Conley index for a completely continuous operator can be reduced to a finite-dimensional Conley index.
Kim, S.K., Wang, T.X.
openaire   +2 more sources

A comparison between the improved element-free Galerkin method and the element-free Galerkin method for 2D potential and elasticity problems

open access: yesComputer Assisted Methods in Engineering and Science, 2017
In this paper, a comparison between the improved element-free Galerkin (IEFG) method, based on the improved moving least square (IMLS) approximation, and the element-free Galerkin (EFG) method, based on the moving least square (MLS) approximation, is ...
Imen Debbabi   +2 more
doaj   +1 more source

Galerkin Approximations for the Stochastic Burgers Equation [PDF]

open access: yesSIAM Journal on Numerical Analysis, 2013
22 ...
Blömker, Dirk (Prof. Dr.)   +1 more
openaire   +3 more sources

An Entropy Stable Discontinuous Galerkin Finite-Element Moment Method for the Boltzmann Equation

open access: yes, 2016
This paper presents a numerical approximation technique for the Boltzmann equation based on a moment system approximation in velocity dependence and a discontinuous Galerkin finite-element approximation in position dependence.
Abdelmalik, M. R. A.   +1 more
core   +4 more sources

Generalized Multiscale Finite Element Method for Elastic Wave Propagation in the Frequency Domain

open access: yesComputation, 2020
In this work, we consider elastic wave propagation in fractured media. The mathematical model is described by the Helmholtz problem related to wave propagation with specific interface conditions (Linear Slip Model, LSM) on the fracture in the frequency ...
Uygulana Gavrilieva   +2 more
doaj   +1 more source

Discontinuous Galerkin methods with Trefftz approximations

open access: yesJournal of Computational and Applied Mathematics, 2014
14 pages, 12 figures, preprint submitted at J Comput ...
Fritz Kretzschmar   +3 more
openaire   +2 more sources

Adaptive Spectral Galerkin Methods with Dynamic Marking [PDF]

open access: yes, 2015
The convergence and optimality theory of adaptive Galerkin methods is almost exclusively based on the D\"orfler marking. This entails a fixed parameter and leads to a contraction constant bounded below away from zero.
Canuto, Claudio   +3 more
core   +2 more sources

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