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January 2017

ALOP-Colloquium with Prof. Dr. Armin Fuegenschuh

January 19 / 16:15 - 18:00
Trier University, E Building, Universitätsring 15
Trier, Germany
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On Thursday, January 19, 2017,  Prof. Dr. Armin Fuegenschuh from the Helmut Schmidt Universitaet Hamburg will join the ALOP-Colloquium and present his recent work entitledDesign Issues for Magnetic Rulers We deal with the design of a magnetic ruler as an absolute positioning system. Trapezoid-shaped magnetic areas are placed side by side, so that the resulting pattern enables a unique encoding of each position up to a micrometer level. The problem of finding a longest-possible ruler from a set of elementary…

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ALOP-Colloquium with Dr. Roland Hildebrand

January 23 / 16:00 - 18:00
Trier University, E Building, Universitätsring 15
Trier, Germany
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On Thursday, January 23, 2017,  Dr. Roland Hildebrand from the University of Grenoble  will join the ALOP-Colloquium and present his recent work Element-wise functions preserving positivity of matrices At 15:45 there will be a coffee hour in E10. The presentation will take place in HS9 at 16:15.

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February 2017

ALOP Colloquium with Dr. Bart Vandereycken

February 6 / 16:00 - 18:00
Trier University, E Building, Universitätsring 15
Trier, Germany
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On Monday, February 6, 2017,  Dr. Bart Vandereycken from the University of Geneva will join the ALOP-Colloquium and present his recent work Manifold optimization for low rank matrix and tensor completionThe minimisation of a smooth objective function subject to (matrix) rank constraints can sometimes be very effectively solved by methods from Riemannian optimisation. This is for instance the case with the low-rank matrix and tensor completion problems However, the standard theory of Riemannian optimisation leaves some questions unanswered regarding its theoretical and practical…

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March 2017

DFG-AIMS Workshop

March 13 / 8:00 - March 16 / 17:00
Hotel Royal Saly, Route Saly-Ngaparou
Mbour, Senegal
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DFG-AIMS Workshop on Shape optimization, homogenization and control Time: March 13-16, 2017 Location: AIMS Sénégal, Mbour, Sénégal.  Supported by and    Organizers:Volker Schulz (Trier University)Diaraf Seck (Cheikh Anta Diop University Dakar, Sénégal) Local organization comittee:Prof. Dr. Diaraf Seck, Université Cheikh Anta Diop (UCAD), Dakar, SénégalProf. Dr. Mouhamed Moustapha Fall, Professor of the Humboldt Chair (AIMS Sénégal)Prof. Dr. Idrissa Ly, Shape optimization, UCAD, Dakar, Sénégal:Prof. Dr. Babacar Mbaye Ndiaye, Optimization and Operation Research, UCAD, SénégalProf. Dr. Aissa Wade , Geometry (Academic Director of AIMS Sénégal)Prof.…

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ALOP Workshop: Women in Optimization

March 20 - March 22
Trier University – E-Building – HS 9, Universität Trier Gebäude E
Trier, Rhineland-Palatinate 54296 Germany
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Der Workshop "Women in Optimization" findet vom 20. - 22. März 2017 an der Universität Trier statt.  Dieser Workshop richtet sich an Nachwuchswissenschaftlerinnen, Doktorandinnen und Studentinnen der Mathematik mit dem Schwerpunkt Optimierung. Das Ziel des Workshops liegt sowohl in der fachlichen Weiterbildung als auch in der Vernetzung innerhalb der Optimierungscommunity. In Fachvorträgen geladener Referentinnen möchten wir zum einen ein möglichst breites fachliches Spektrum der mathematischen Optimierung und der damit verbundenen Numerik präsentieren. Zum anderen möchten wir den Teilnehmerinnen verschiedene Karrieremodelle…

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ALOP Workshop: Stochastic Models and Control

March 22 - March 24
Nells Park Hotel, Dasbachstraße 12
Trier, 54292 Germany
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The workshop will bring together leading experts and researchers from different areas of stochastic control and optimization. Like the preceding successful workshops in this series, held in Wittenberg (2009), Bad Herrenalb/Karlsruhe (2011), Berlin (2013), and Kaiserslautern (2015), the 2017 meeting aims to provide a stimulating environment for discussions of recent developments, and a platform for presentations of current research in our field.

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April 2017

ALOP Colloquium with Dr. Marta D’Elia

April 19 / 16:00 - 18:00
Trier University, E Building, Universitätsring 15
Trier, Germany
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On Wednesday, April 19, 2017,  Dr. Marta D'Elia from the Computer Science Research Institute at Sandia National Laboratories will join the ALOP-Colloquium and present her recent work entitled A coupling strategy for nonlocal and local models with applications to static peridynamics and classical elasticityABSTRACT: The use of nonlocal models in science and engineering applications has been steadily increasing over the past decade. The ability of nonlocal theories to accurately capture effects that are difficult or impossible to represent by local Partial Differential…

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ALOP Colloquium with Prof. Florian Jarre

April 24 / 16:00 - 18:00
Trier University E Building, Universitätsring 15
Trier, 54296 Germany
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On Monday, April 24, 2017,  Prof. Florian Jarre from the Heinrich Heine Universität Düsseldorf will join the ALOP-Colloquium and present his recent work "The Max-Cut-Polytop"AbstractThe max-cut-polytope arises from a simple reformulation of the problem of finding the maximum cut in a graph with given edge weights. Unfortunately, the exact pre-presentation of the cut polytope is not tractable unless NP = Co-NP.We discuss two different representations and inner and outer nonlinear approximations of the max-cut polytope leading to the anticipation that solving…

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May 2017

ALOP Colloquium with Prof. Andreas Frommer

May 15 / 16:00 - 18:00
Trier University E Building, Universitätsring 15
Trier, 54296 Germany
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On Monday, May 15 2017,   Prof. Andreas Frommer of Bergische Universität Wuppertal will join the ALOP-Colloquium and present his recent work entitled Matrix functions - computation and convergence for Krylov subspace based methods Abstract: f(A)b, the action of the function f of a matrix A on a vector b, is required in many applications, for example in exponential integrators, where f = exp or in lattice QCD where f(z) = z-α; α ϵ (0, 1). Typically, A is large and sparse, so…

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ALOP Colloquium with Prof. François Glineur

May 29 / 16:00 - 18:00
Trier University, E Building, Universitätsring 15
Trier, Germany
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On Monday, May 29, 2017,  Prof. François Glineur from the Université catholique de Louvain will join the ALOP-Colloquium and present his recent work entitledPerformance estimation of first-order methods for composite convex optimizationComposite convex optimization consists in the minimization of a convex objective function equal to the sum of several convex functions with different properties, for example a smooth term and a nonsmooth term. We consider a large class of first-order methods designed to solve such composite problems, which rely on specific…

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