COMPUTATIONS ON PRECONDITIONING CUBIC SPLINE COLLOCATION METHOD OF ELLIPTIC EQUATIONS

  • Lee, Yong-Hun (Department of Mathematics, Chonbuk National University)
  • Published : 2001.05.01

Abstract

In this work we investigate the finite element preconditioning method for the $C^1$-cubic spline collocation discretizations for an elliptic operator A defined by $Au := -{\Delta}u + a_1u_x+a_2u_y+a_0u$ in the unit square with some boundary conditions. We compute the condition number and the numerical solution of the preconditioning system for the several example problems. Finally, we compare the this preconditioning system with the another preconditioning system.

Keywords

References

  1. Spline tool box for use with Matalb C.de Boor
  2. Numer. Math. v.26 Collocation Methods for Parabolic Partial Differential Equations in one dimensional space J.Cerutti;S.V.Parter
  3. SIAM J. Sci. Stat. Comput. v.11 Finite-Element Preconditioning for Pseudospectral Solutions of Elliptic Problems M.O.Deville;E.H.Mund
  4. Lecture Notes in Mathematics v.385 Collocation Methods for Parabolic Equations in a Single Space Variable J.Douglas;T.Dupont
  5. Numer. Math. v.77 Finite difference preconditioning cubic spline collocation method of elliptic equations H.O.Kim;S.D.Kim;Y.H.Lee
  6. Lin. Anal. and Its Appl. Analysis on Eigenvalues for preconditioning cubic spline collocation method of elliptic equations S.D.Kim;Y.H.Lee
  7. Numer. Math. v.72 Preconditioning cubic spline collocation discretization of elliptic equations S.D.Kim;S.V.Parter
  8. J. Comp. Physics v.37 Spectral methods for problems in complex geometries S.A.Orszag
  9. SIAM J. Sci. Stat. Comput. v.7 GMRES : A generalized minimal residual algorithm for solving non-symmetric linear systems Y.Saad;M.H.Schultz
  10. SIAM J. Sci. Stat. Comput. v.13 Bi-CGSTAB: A fast and smoothly converging variant of Bi-CG for the solution of nonsymmetric linear system H.A.Van der Vorst