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- W2946910868 abstract "Adaptive finite element methods (FEM) have been widely used in applications for over 20 years now. In practice, they converge starting from coarse grids, although no mathematical theory has been able to prove this assertion. Ensuring an error reduction rate based on a posteriori error estimators, together with a reduction rate of data oscillation (information missed by the underlying averaging process), we construct a simple and efficient adaptive FEM for elliptic partial differential equations. We prove that this algorithm converges with linear rate without any preliminary mesh adaptation nor explicit knowledge of constants. Any prescribed error tolerance is thus achieved in a finite number of steps. A number of numerical experiments in two and three dimensions yield quasi-optimal meshes along with a competitive performance. Extensions to higher order elements and applications to saddle point problems are discussed as well.Keywords: A posteriori error estimators, data oscillation, adaptive mesh refinement, convergence, Stokes, UzawaAMS Subject Classifications: 65N12, 65N15, 65N30, 65N50, 65Y20Published: SIAM Review, 44 (2002) 631--658." @default.
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- W2946910868 date "2001-01-01" @default.
- W2946910868 modified "2023-09-27" @default.
- W2946910868 title "Convergence of Adaptive Finite Element Methods" @default.
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