A comparison of computational complexities of hfem and abc based finite element methods

M. A. Nasir, W. C. Chew, P. Raghavan, M. T. Heath

Research output: Contribution to journalArticlepeer-review

Abstract

The solution of a hybrid finite 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(N1.5) cost when sparse direct methods are used. This cost is comparable to FEM methods using approximate boundary conditions and a similar sparse solution method.

Original languageEnglish (US)
Pages (from-to)1601-1617
Number of pages17
JournalJournal of Electromagnetic Waves and Applications
Volume11
Issue number12
DOIs
StatePublished - 1997

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Physics and Astronomy(all)
  • Electrical and Electronic Engineering

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