A Comparison of Computational Complexities of HFEM and ABC Based Finite Element Methodsy
نویسندگان
چکیده
The solution of a hybrid nite element method (HFEM) problem is considered. It is shown that a suitable ordering of the FEM mesh results in a canonical HFEM matrix system. This linear system can be solved in O(N 1:5) cost when sparse direct methods are used. This cost is comparable to FEM methods using approximate boundary conditions and a similar sparse solution method.
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