Results 11 to 20 of about 28,118,061 (306)

On Galerkin difference methods [PDF]

open access: yesJournal of Computational Physics, 2016
Energy-stable difference methods for hyperbolic initial-boundary value problems are constructed using a Galerkin framework. The underlying basis functions are Lagrange functions associated with continuous piecewise polynomial approximation on a computational grid.
Thomas Hagstrom, Jeffrey W. Banks
openaire   +2 more sources

A test of the Source Galerkin method [PDF]

open access: yesNuclear Physics B - Proceedings Supplements, 2003
Talk presented at LATTICE2002, 3 pages, 2 ...
P. Emirdag, D. Petrov, Gerald Guralnik
openaire   +3 more sources

On discontinuous Galerkin methods

open access: yesInternational Journal for Numerical Methods in Engineering, 2003
AbstractDiscontinuous Galerkin methods have received considerable attention in recent years for problems in which advection and diffusion terms are present. Several alternatives for treating the diffusion and advective fluxes have been introduced. This report summarizes some of the methods that have been proposed.Several numerical examples are included
O. C. Zienkiewicz   +5 more
openaire   +6 more sources

Discontinuous Galerkin methods [PDF]

open access: yesZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, 2003
AbstractThis paper is a short essay on discontinuous Galerkin methods intended for a very wide audience. We present the discontinuous Galerkin methods and describe and discuss their main features. Since the methods use completely discontinuous approximations, they produce mass matrices that are block‐diagonal.
openaire   +2 more sources

A multilevel discontinuous Galerkin method [PDF]

open access: yesNumerische Mathematik, 2003
With extended references to the major papers on the subject, this work analyzes mathematically multigrid techniques for two discontinuous Galerkin methods: one for elliptic problems and a second one for singular perturbed advection-diffusion problems. In the former case, the analysis predicts convergence rates of the multigrid method independent of the
Gopalakrishnan, Jay, Kanschat, Guido
openaire   +4 more sources

The meshless Galerkin method for pressure distribution simulation of horizontal well reservoir

open access: yesPetroleum, 2015
This paper provides a novel three-dimensional meshless Galerkin for horizontal well reservoir simulation. The pressure function is approached by moving least-square method which consists of weight function, basic function and coefficient.
Shuyong Hu   +3 more
doaj   +1 more source

Convergence Analysis of the Lowest Order Weakly Penalized Adaptive Discontinuous Galerkin Methods [PDF]

open access: yes, 2012
In this article, we prove convergence of the weakly penalized adaptive discontinuous Galerkin methods. Unlike other works, we derive the contraction property for various discontinuous Galerkin methods only assuming the stabilizing parameters are large ...
Gudi, Thirupathi, Guzmán, Johnny
core   +1 more source

Stability evaluation of high-order splitting method for incompressible flow based on discontinuous velocity and continuous pressure

open access: yesAdvances in Mechanical Engineering, 2019
In this work, we deal with high-order solver for incompressible flow based on velocity correction scheme with discontinuous Galerkin discretized velocity and standard continuous approximated pressure.
Liyang Xu   +5 more
doaj   +1 more source

A domain decomposition method for solving the three-dimensional time-harmonic Maxwell equations discretized by discontinuous Galerkin methods [PDF]

open access: yes, 2008
We present here a domain decomposition method for solving the three-dimensional time-harmonic Maxwell equations discretized by a discontinuous Galerkin method.
Alonso-Rodriguez   +32 more
core   +5 more sources

Numerical Quantum Field Theory on the Continuum and a New Look at Perturbation Theory [PDF]

open access: yes, 2001
The Source Galerkin method finds approximate solutions to the functional differential equations of field theories in the presence of external sources. While developing this process, it was recognized that approximations of the spectral representations of
D. Petrov   +12 more
core   +3 more sources

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