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# SFB 910

Nonlinear evolution equations: analysis, discretization, and feedback control

Project A8 in SFB 910 funded since September 1, 2012

Principal investigator:

Prof. Dr. Etienne Emmrich

Other investigators:

Robert Lasarzik; Dr. Christian Kreusler; André Eikmeier; Lukas Geuter (student assistant)

The mathematical modeling of time-dependent processes in science and engineering leads to, in general, nonlinear evolution equations of first or second order in time. The highest spatial derivatives appearing can often be described by a monotone and coercive operator; lower order terms are then treated as a strongly continuous perturbation of the principal part. Relying upon the variational approach and the theory of monotone operators, the approximate solution of such evolution problems is studied with focus on problems with nonlocality in time and on the convergence of appropriate discretization methods. Applications arise in the description of complex fluids as well as of neuron dynamics. A long term goal is the question of controllability of the systems above.This project is part of the DFG Research Center MATHEON and listed under the number CAP3