Algorithm 685: a program for solving separable elliptic equations

  • Authors:
  • Linda Kaufman;Daniel D. Warner

  • Affiliations:
  • AT&T Bell Labs, Murray Hill, NJ;Clemson Univ., Clemson, SC

  • Venue:
  • ACM Transactions on Mathematical Software (TOMS)
  • Year:
  • 1990

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Abstract

This paper persents a program SERRG2 that solves separable elliptic equations on a rectangle. The program uses a matrix decomposition technique to directly solve the linear system arising from a Rayleigh-Ritz-Galerkin approach with tensor product B-splines to solve the separable partial differential equation. This approach permits high-order discretizations, variable meshes, and multiple knots.