Error representation of the time-marching DPG scheme
Error representation of the time-marching DPG scheme
复制标题
时间推进 DPG 方案的误差表示
DOI:
10.1016/j.cma.2021.114480
复制
发表时间:
2022
影响因子:
7.2
通讯作者:
Pardo, D.
中科院分区:
文献类型:
--
作者:
Munoz-Matute, J.;Demkowicz, L;Pardo, D.
In this article, we introduce an error representation function to perform adaptivity in time of the recently developed time-marching Discontinuous Petrov–Galerkin (DPG) scheme. We first provide an analytical expression for the error that is the Riesz representation of the residual. Then, we approximate the error by enriching the test space in such a way that it contains the optimal test functions. The local error contributions can be efficiently computed by adding a few equations to the time-marching scheme. We analyze the quality of such approximation by constructing a Fortin operator and providing anaposteriorierror estimate. The time-marching scheme proposed in this article provides an optimal solution along with a set of efficient and reliable local error contributions to perform adaptivity. We validate our method for both parabolic and hyperbolic problems.
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DOI:
10.1016/j.camwa.2020.03.024
发表时间:
2019
期刊:
Comput. Math. Appl.
影响因子:
--
作者:
Stefan Henneking;L. Demkowicz
通讯作者:
L. Demkowicz
影响因子:
2.9
作者:
S. Nagaraj;S. Petrides;L. Demkowicz
通讯作者:
L. Demkowicz
DOI:
--
发表时间:
2021
期刊:
Comput. Methods Appl. Math.
影响因子:
--
作者:
T. Führer;N. Heuer;M. Karkulik
通讯作者:
M. Karkulik
DOI:
--
发表时间:
2016
期刊:
影响因子:
--
作者:
Truman Ellis;Jesse Chan;L. Demkowicz
通讯作者:
L. Demkowicz
DOI:
--
发表时间:
2016
期刊:
Comput. Methods Appl. Math.
影响因子:
--
作者:
T. Führer;N. Heuer;J. S. Gupta
通讯作者:
J. S. Gupta