Results 1 to 10 of about 484 (148)

Superconvergence of the local discontinuous Galerkin method for nonlinear convection-diffusion problems [PDF]

open access: yesJournal of Inequalities and Applications, 2017
In this paper, we discuss the superconvergence of the local discontinuous Galerkin methods for nonlinear convection-diffusion equations. We prove that the numerical solution is ( k + 3 / 2 ) $(k+3/2)$ th-order superconvergent to a particular projection ...
Hui Bi, Chengeng Qian
doaj   +2 more sources

An Optimized Schwarz Method for the Optical Response Model Discretized by HDG Method [PDF]

open access: yesEntropy, 2023
An optimized Schwarz domain decomposition method (DDM) for solving the local optical response model (LORM) is proposed in this paper. We introduce a hybridizable discontinuous Galerkin (HDG) scheme for the discretization of such a model problem based on ...
Jia-Fen Chen   +3 more
doaj   +2 more sources

Local Discontinuous Galerkin Methods for the abcd Nonlinear Boussinesq System [PDF]

open access: yesCommunications on Applied Mathematics and Computation, 2021
Boussinesq type equations have been widely studied to model the surface water wave. In this paper, we consider the abcd Boussinesq system which is a family of Boussinesq type equations including many well-known models such as the classical Boussinesq system, BBM-BBM system, Bona-Smith system etc.
Sun, Jiawei, Xie, Shusen, Xing, Yulong
openaire   +2 more sources

Equivalence Between DFR Method and DG Method for Solving Parabolic Equation and Convection-diffusion Equation

open access: yesJournal of Harbin University of Science and Technology, 2022
The equivalence between direct flux reconstruction method and discontinuous Galerkin method for solving parabolic equation and convection-diffusion equation is studied.
BI Hui, LIU Lei
doaj   +1 more source

A discontinuous Galerkin method to solve Liouville’s equation of geometrical optics [PDF]

open access: yesEPJ Web of Conferences, 2022
We present an alternative method to ray tracing that is based on a phase space description of light propagation. Liouville’s equation of geometrical optics describes the evolution of the basic luminance on phase space.
van Gestel Robert A.M.   +3 more
doaj   +1 more source

An h-Adaptive Poly-Sinc-Based Local Discontinuous Galerkin Method for Elliptic Partial Differential Equations

open access: yesAxioms, 2023
For the purpose of solving elliptic partial differential equations, we suggest a new approach using an h-adaptive local discontinuous Galerkin approximation based on Sinc points.
Omar A. Khalil, Gerd Baumann
doaj   +1 more source

Residual based a posteriori error estimation for Dirichlet boundary control problems [PDF]

open access: yesESAIM: Proceedings and Surveys, 2021
We study a residual–based a posteriori error estimate for the solution of Dirichlet boundary control problem governed by a convection diffusion equation on a two dimensional convex polygonal domain, using the local discontinuous Galerkin (LDG) method ...
Yücel Hamdullah
doaj   +1 more source

Local Discontinuous Galerkin Methods for the Stokes System [PDF]

open access: yesSIAM Journal on Numerical Analysis, 2002
A discontinuous Galerkin method for the Stokes problem is introduced and analysed. A priori error estimates for velocity and pressure are derived, which are shown to be optimal, if proper polynomial approximations and stabilization parameters are used.
Cockburn, Bernardo   +3 more
openaire   +2 more sources

On the Local Discontinuous Galerkin Method for Linear Elasticity [PDF]

open access: yesMathematical Problems in Engineering, 2010
Following Castillo et al. (2000) and Cockburn (2003), a general framework of constructing discontinuous Galerkin (DG) methods is developed for solving the linear elasticity problem. The numerical traces are determined in view of a discrete stability identity, leading to a class of stable DG methods. A particular method, called the LDG method for linear
Chen, Yuncheng   +3 more
openaire   +2 more sources

Numerical approximation of time-fractional Burgers-type equation

open access: yesAdvances in Difference Equations, 2020
In this work, we analyze and test a local discontinuous Galerkin method for solving the Burgers-type equation. The proposed numerical method, which is high-order accurate, is based on a finite difference scheme in time and local discontinuous Galerkin ...
Miaomiao Yang
doaj   +1 more source

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