Refining the submesh strategy in the two
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Leopoldo P. Franca; Feng-Nan Hwang
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Article
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2002
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John Wiley and Sons
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English
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## Abstract We introduce a new submesh strategy for the twoโlevel finite element method. The numerical results show that the new submesh is able to better capture the boundary layer which is caused by the choice of bubble functions. The effect of an improved approximation of the residual free bubbl