feedback control

Wednesday, April 13, 2016 - 9:00am - 10:00am
Srinivasa Salapaka (University of Illinois at Urbana-Champaign)
Many techniques for nanoscale investigation, even though developed in different areas which do not have anything in common in terms of motivation or objectives, pose problems that are remarkably similar. Many of these problems involve regulation or estimation of certain physical variables under constraints and various uncertainties. In many cases existing solutions are area specific, static or open-loop, which are often inadequate or costly.
Monday, March 14, 2016 - 12:00pm - 12:30pm
Fredi Troeltzsch (Technische Universität Berlin)
A nonlocal Pyragas type feedback controller is considered for a parabolic partial differential equation with cubic reaction term. The main goal is to find an optimal kernel in the controller such that the solution of the associated parabolic integro-differential equation is close to a desired spatio-temporal pattern. This leads to a nonlinear optimal control problem with the feedback kernel taken as control function. The well-posedness of the problem and necessary optimality conditions are discussed.
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