A. Battermann

Solution of a Groundwater Control Problem with Implicit Filtering

Cass T. Miller, Carl Tim Kelley, Todd S. Coffey, 2002 .

Block Preconditioners for KKT Systems in PDE—Governed Optimal Control Problems

Ekkehard W. Sachs, E. Sachs, Astrid Battermann, 2001 .

Preconditioners for Karush-Kuhn-Tucker Matrices Arising in the Optimal Control of Distributed Systems

Matthias Heinkenschloss, A. Battermann, M. Heinkenschloss, 1998 .

Approximation of the Newton Step by a Defect Correction Process

E. Sachs, E. Arian, A. Battermann, 1999, Universität Trier, Mathematik/Informatik, Forschungsbericht.

Preconditioners for Karush{Kuhn{Tucker Systems arising in Optimal Control

A. Battermann, 1996 .