83 search results - page 5 / 17 » A Globally Convergent Numerical Method for a Coefficient Inv... |
SIAMIS
2008
13 years 7 months ago
2008
We are motivated by a recently developed nonlinear inverse scale space method for image denoising [5, 6], whereby noise can be removed with minimal degradation. The additive noise ...
SIAMNUM
2010
13 years 2 months ago
2010
In this paper we extend the discrete duality finite volume (DDFV) formulation to the steady convection-diffusion equation. The discrete gradients defined in DDFV are used to define...
SIAMNUM
2011
13 years 2 months ago
2011
We introduce a new mixed method for the biharmonic problem. The method is based on a formulation where the biharmonic problem is re-written as a system of four first-order equatio...
FOCM
2007
13 years 7 months ago
2007
A general scheme for trust-region methods on Riemannian manifolds is proposed and analyzed. Among the various approaches available to (approximately) solve the trust-region subpro...
MCS
2008
Springer
13 years 7 months ago
2008
Springer
We investigate optimal control problems subject to mixed control-state constraints. The necessary conditions are stated in terms of a local minimum principle. By use of the Fischer...