Title :
O(N/sup 1.5/) solution of hybrid FEM problems
Author :
Nasir, M.A. ; Weng Cho Chew ; Raghavan, P. ; Heath, M.T.
Author_Institution :
Dept. of Electr. & Comput. Eng., Illinois Univ., Urbana, IL, USA
Abstract :
Solution of a hybrid finite element method (HFEM) problem is considered. It is shown that suitable ordering of the FEM mesh results in a canonical HFEM matrix system. This linear system can be solved in O(N/sup 1.5/) cost when sparse methods are used. This cost is comparable to FEM methods using approximate boundary conditions and other similar sparse methods.<>
Keywords :
boundary integral equations; computational complexity; electromagnetic wave scattering; mesh generation; sparse matrices; O(N/sup 1.5/) solution; boundary conditions; canonical HFEM matrix system; hybrid FEM problems; hybrid finite element method; linear system; sparse methods; Bandwidth; Boundary conditions; Costs; Finite element methods; Geometry; Heat engines; Integral equations; Linear systems; Resistance heating; Sparse matrices;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1994. AP-S. Digest
Conference_Location :
Seattle, WA, USA
Print_ISBN :
0-7803-2009-3
DOI :
10.1109/APS.1994.407717
