6 search results - page 1 / 2 » Preconditioning Stochastic Galerkin Saddle Point Systems |
SIAMMAX
2010
13 years 1 days ago
2010
SIAMMAX
2010
13 years 1 days ago
2010
Many mathematical models involve flow equations characterized by nonconstant viscosity, and a Stokes type problem with variable viscosity coefficient arises. Appropriate block diag...
MOC
2010
13 years 2 days ago
2010
We study H(div) preconditioning for the saddle-point systems that arise in a stochastic Galerkin mixed formulation of the steady-state diffusion problem with random data. The key i...
SIAMMAX
2010
13 years 1 days ago
2010
Optimality systems and their linearizations arising in optimal control of partial differential equations with pointwise control and (regularized) state constraints are considered. ...
SIAMSC
2010
13 years 3 months ago
2010
In this paper, we describe block matrix algorithms for the iterative solution of large scale linear-quadratic optimal control problems arising from the optimal control of parabolic...