16 search results - page 1 / 4 » Sharpness in rates of convergence for the symmetric Lanczos ... |
MOC
2010
12 years 11 months ago
2010
The Lanczos method is often used to solve a large and sparse symmetric matrix eigenvalue problem. There is a well-established convergence theory that produces bounds to predict the...
MOC
2002
13 years 4 months ago
2002
In this paper two classes of iterative methods for saddle point problems are considered: inexact Uzawa algorithms and a class of methods with symmetric preconditioners. In both cas...
CDC
2010
IEEE
12 years 12 months ago
2010
IEEE
The asymptotic behavior of stochastic gradient algorithms is studied. Relying on some results of differential geometry (Lojasiewicz gradient inequality), the almost sure pointconve...
SIAMNUM
2010
12 years 11 months ago
2010
We analyze an adaptive discontinuous finite element method (ADFEM) for symmetric second order linear elliptic operators. The method is formulated on nonconforming meshes made of si...
SPAA
1990
ACM
13 years 9 months ago
1990
ACM
We introduce a new preconditioner for solving a symmetric Toeplitz system of equations by the conjugate gradient method. This choice leads to an algorithm which is particularly sui...