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X-ORIGINAL-URL:https://alop.uni-trier.de
X-WR-CALDESC:Events for ALOP
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DTSTART;TZID=Europe/Berlin:20180206T120000
DTEND;TZID=Europe/Berlin:20180206T120000
DTSTAMP:20171120T071726Z
CREATED:20171017T122334Z
LAST-MODIFIED:20171120T071726Z
UID:1522-1517918400-1517918400@alop.uni-trier.de
SUMMARY:ALOP- Colloquium with Prof. Fredi Troeltzsch
DESCRIPTION:On Tuesday\, February 6\, 2018\, at 12:00  Prof. Fredi Tröltzsch of TU Berlin will present his recent work entitled  \nOptimal and Feedback Control of some Reaction-Diffusion Equations \nThe optimal control of some systems of nonlinear reaction-diffusion equations is considered including several important equations of mathematical physics. In particular\, equations are covered that develop traveling wave fronts\, spiral waves\, scroll rings\, or propagating spot solutions. Well-posedness of the system\, differentiability of the control-to-state mapping\, and optimality conditions of first and second order are briefly sketched. In particular\, the case of sparse optimal control is addressed. A novel application of pointwise state constraints is presented that prevent a propagating spot from hitting the boundary of the spatial domain. Finally\, the optimization of time-delays in local and nonlocal Pyragas type feedback control is discussed. Various numerical examples illustrate a great diversity of geometrical patterns and their control. \nThe presentation will take place in E51. \nPlease join us for coffee at 11:45 in E51.
URL:https://alop.uni-trier.de/event/alop-colloquium-with-prof-fredi-troeltzsch/
LOCATION:Trier University E Building\, Universitätsring 15\, Trier\, 54296\, Germany
CATEGORIES:Colloquium
ORGANIZER;CN="Research Training Group ALOP at Trier University":MAILTO:OptimizationDays@uni-trier.de
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BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20180226T160000
DTEND;TZID=Europe/Berlin:20180226T180000
DTSTAMP:20180216T094706Z
CREATED:20180131T161505Z
LAST-MODIFIED:20180216T094706Z
UID:1841-1519660800-1519668000@alop.uni-trier.de
SUMMARY:ALOP-Colloquium with Prof. Dr. Geovani Grapiglia
DESCRIPTION:Prof. Dr. Geovani Grapiglia of the Universidade Federal do Parana in Curitiba\, PR\, Brasil will visit with the students of the RTG ALOP to discuss his research as well as speak during our colloquium on the topic of \nImproved Optimization Methods for Image Registration Problems \n \n Abstract: In many applications\, multiple images of the same subject are obtained at different moments in time and under different conditions. The goal is to identify changes in the subject over time. For a fair comparison\, the images need to be aligned in order to overlap the common features. Image Registration is the problem to find the transformation of images leading to the best overlapping. The mathematical modelling of this type of problem often results in large-scale unconstrained optimization problems to solve. The usual approach is to apply Gauss-Newton Method with Armijo line-search embedded in a multi-level coarse-to-fine scheme\, where the solution of the coarse level is used to generate the initial point for the fine level. In this talk\, two alternative approaches will be discussed\, including the use of L-BFGS and subspace techniques. \n  \nThe Colloquium talk with take place in HS 9 at 16:00 c.t.  Please join us for coffee at 15:45 in E 10. \nWe are very pleased to welcome him in Trier!
URL:https://alop.uni-trier.de/event/prof-dr-geovani-grapiglia-to-visit-with-rtg-alop/
LOCATION:Trier University\, E Building\, Universitätsring 15\, Trier\, Germany
CATEGORIES:Colloquium,Scientific Research Collaboration
ORGANIZER;CN="Research Training Group ALOP at Trier University":MAILTO:OptimizationDays@uni-trier.de
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20180228T093000
DTEND;TZID=Europe/Berlin:20180228T160000
DTSTAMP:20180227T085608Z
CREATED:20180227T085608Z
LAST-MODIFIED:20180227T085608Z
UID:1866-1519810200-1519833600@alop.uni-trier.de
SUMMARY:Writing Mathematical Texts in English
DESCRIPTION:The Research Training Group on Algorithmic Optimization is offering a one-day workshop entitled \nWriting Mathematical Texts in English (instructor: Prof. Mirjam Dür) \non Wednesday\, February 28\, 2018 from 9:30 – 16:00 in E 51. \n 
URL:https://alop.uni-trier.de/event/writing-mathematical-texts-in-english/
CATEGORIES:Workshop
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