Abstract
Using higher p-order ansatz functions in the finite element method achieves already with a rather small number of elements good approximations of the smooth part of the solution. For covering this part the p-method is more efficient than the h-method. Otherwise is a high p-order too expensive according to computational effort to use it on a large number of elements which might be necessary to approximate the solution in disturbed areas of a structure. We present an ansatz space which balances the good approximation quality of higher p-ansatz with their computational cost by assigning each level of an hierarchical sequence of meshes an own adequate ansatz space.
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Received 30 November 2000
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Niekamp, R., Stein, E. The hierarchically graded multilevel finite element method . Computational Mechanics 27, 302–304 (2001). https://doi.org/10.1007/s004660100242
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DOI: https://doi.org/10.1007/s004660100242