Geodesic
Mesh adaptation based on functional a posteriori estimates with Raviart–Thomas approximation
Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki, Tome 52 (2012) no. 7, pp. 1277-1288 Cet article a éte moissonné depuis la source Math-Net.Ru

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Adaptive algorithms based on functional a posteriori estimates for the Dirichlet problem for the stationary diffusion equation with jump discontinuities in the equation coefficients are compared. The algorithms have been implemented in MATLAB with the use of both standard finite element approximations and the zero-order Raviart–Thomas approximation. The adaptation results are analyzed using indicators of the local error distribution. Specifically, sequences of finite-element partitions, effectivity indices of estimates, and relative errors of approximate solutions are compared. 
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M. E. Frolov; M. A. Churilova. Mesh adaptation based on functional a posteriori estimates with Raviart–Thomas approximation. Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki, Tome 52 (2012) no. 7, pp. 1277-1288. http://geodesic.mathdoc.fr/item/ZVMMF_2012_52_7_a9/

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