Acceleration of convergence
Conference
·
OSTI ID:6427166
Acceleration of the convergence of approximate operator iteration schemes is discussed. Algorithms based on both residual minimization and use of conjugate vector spaces are presented. It is shown that both give dramatic improvement, at very low computational cost, in the iterative solution of radiative transfer problems in the presence of scattering. 13 refs., 7 figs.
- Research Organization:
- Los Alamos National Lab., NM (USA)
- Sponsoring Organization:
- DOE/DP
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 6427166
- Report Number(s):
- LA-UR-90-4022; CONF-9009308-3; ON: DE91004860
- Resource Relation:
- Conference: NATO advanced workshop on stellar atmospheres: beyond classical models, Trieste (Italy), 3-7 Sep 1990
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ITERATIVE METHODS
CONVERGENCE
STELLAR ATMOSPHERES
RADIATION TRANSPORT
ALGORITHMS
SCATTERING
ATMOSPHERES
MATHEMATICAL LOGIC
990200* - Mathematics & Computers
640102 - Astrophysics & Cosmology- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ITERATIVE METHODS
CONVERGENCE
STELLAR ATMOSPHERES
RADIATION TRANSPORT
ALGORITHMS
SCATTERING
ATMOSPHERES
MATHEMATICAL LOGIC
990200* - Mathematics & Computers
640102 - Astrophysics & Cosmology- Stars & Quasi-Stellar
Radio & X-Ray Sources