Stopping Criteria for Adaptive Finite Element Solvers
Stopping Criteria for Adaptive Finite Element Solvers
复制标题
自适应有限元求解器的停止标准
DOI:
10.1137/120867421
复制
发表时间:
2013
影响因子:
3.1
通讯作者:
Arioli M
中科院分区:
文献类型:
--
作者:
Arioli M
We consider a family of practical stopping criteria for linear solvers for adaptive finite element methods for symmetric elliptic problems. A contraction property between two consecutive levels of refinement of the adaptive algorithm is shown when a family of smallness criteria for the corresponding linear solver residuals are assumed on each level or refinement. More importantly, based on known and new results for the estimation of the residuals of the conjugate gradient method, we show that the smallness criteria give rise to practical stopping criteria for the iterations of the linear solver, which guarantees that the (inexact) adaptive algorithm converges. A series of numerical experiments highlights the practicality of the theoretical developments.
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