On computing certain elements of the inverse of a sparse matrix

  • Authors:
  • A. M. Erisman;W. F. Tinney

  • Affiliations:
  • Boeing Computer Services, Seattle, WA;Bonneville Power Administration, Portland, OR

  • Venue:
  • Communications of the ACM
  • Year:
  • 1975

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Abstract

A recursive algorithm for computing the inverse of a matrix from the LU factors based on relationships in Takahashi, et al., is examined. The formulas for the algorithm are given; the dependency relationships are derived; the computational costs are developed; and some general comments on application and stability are made.