共 35 条
A UNIFIED FRAMEWORK FOR TIME-DEPENDENT SINGULARLY PERTURBED PROBLEMS WITH DISCONTINUOUS GALERKIN METHODS IN TIME
被引:6
作者:
Franz, Sebastian
[1
]
Matthies, Gunar
[2
]
机构:
[1] Tech Univ Dresden, Inst Comp Sci, D-01062 Dresden, Germany
[2] Tech Univ Dresden, Inst Numer Math, D-01062 Dresden, Germany
关键词:
CONVECTION-DIFFUSION PROBLEMS;
INTERIOR PENALTY METHOD;
FINITE-ELEMENT-METHOD;
HIGHER-ORDER DISCRETISATIONS;
SHISHKIN MESHES;
CHARACTERISTIC LAYERS;
SUPERCONVERGENCE;
STABILIZATION;
SUPERCLOSENESS;
APPROXIMATIONS;
D O I:
10.1090/mcom/3326
中图分类号:
O29 [应用数学];
学科分类号:
070104 ;
摘要:
In this paper we present a unified framework for the error analysis of time-dependent singularly perturbed problems with discontinuous Galerkin time discretisation. Its general analysis relies on spatial error estimates known from stationary problems and the properties of the discontinuous Galerkin time discretisation. We present also applications of our framework to second- and fourth-order singularly perturbed problems in estimation and simulation.
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页码:2113 / 2132
页数:20
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