๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Some conjugate gradient methods for symmetric and nonsymmetric systems

โœ Scribed by Prakhya, K. V. G.


Publisher
Wiley (John Wiley & Sons)
Year
1988
Tongue
English
Weight
391 KB
Volume
4
Category
Article
ISSN
0748-8025

No coin nor oath required. For personal study only.

โœฆ Synopsis


The performance of Stiefel's conjugate gradient (CG) method and a reformulated three-parameter C G are compared for structural analysis problems having varying condition numbers. It has been found that diagonal preconditioning in the three-parameter C G method is efficient when high condition numbers are encountered.


๐Ÿ“œ SIMILAR VOLUMES


Asymptotic Convergence of Conjugate Grad
โœ Luca Bergamaschi; Giuseppe Gambolati; Giorgio Pini ๐Ÿ“‚ Article ๐Ÿ“… 1997 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 149 KB

Recently an efficient method (DACG) for the partial solution of the symmetric generalized eigenproblem Ax = ฮปBx has been developed, based on the conjugate gradient (CG) minimization of the Rayleigh quotient over successive deflated subspaces of decreasing size. The present paper provides a numerical

CONJUGATE GRADIENT METHODS FOR SOLVING T
โœ Y. T. FENG; D. R. J. OWEN ๐Ÿ“‚ Article ๐Ÿ“… 1996 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 1000 KB

In this paper, a detailed description of CG for evaluating eigenvalue problems by minimizing the Rayleigh quotient is presented from both theoretical and computational viewpoints. Three variants of CG together with their asymptotic behaviours and restarted schemes are discussed. In addition, it is s