A normalized sparse linear equations solver |
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Authors: | Elias A Lipitakis |
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Institution: | Department of Computer Studies, University of Technology, Loughborough, Leicestershire, UK |
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Abstract: | Normalized factorization procedures for the solution of large sparse linear finite element systems have been recently introduced in 3]. In these procedures the large sparse symmetric coefficient matrix of irregular structure is factorized exactly to yield a normalized direct solution method. Additionally, approximate factorization procedures yield implicit iterative methods for the finite difference or finite element solution. The numerical implementation of these algorithms is presented here and FORTRAN subroutines for the efficient solution of the resulting large sparse symmetric linear systems of algebraic equations are given. |
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Keywords: | Finite element systems self-adjoint elliptic partial differential equations normalized direct solution methods |
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