Abstract
We define and analyse a block version of Strang's circulant preconditioner for a convection-diffusion problem. We construct an equivalent symmetric problem which allows to employ the conjugate gradient method, and avoid more general iterative methods, such as GMRES. A block circulant preconditioner can also be constructed for the two-dimensional Euler equations, and used in combination with Runge-Kutta iterations.
Original language | English |
---|---|
Pages (from-to) | 851-856 |
Number of pages | 6 |
Journal | Comptes Rendus de l'Academie des Sciences - Series I: Mathematics |
Volume | 330 |
Issue number | 9 |
DOIs | |
Publication status | Published - May 1 2000 |
Externally published | Yes |
ASJC Scopus subject areas
- General Mathematics