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April 2017

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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June 2017

ALOP Colloquium with Prof. Lorenz T. (Larry) Biegler

June 9 / 10:30 - 12:00
Trier University E Building, Universitätsring 15
Trier, 54296 Germany
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On Friday, June 9 2017,  Prof. Lorenz T. (Larry) Biegler,  will join the ALOP-Colloquium and present his recent work. Lorenz T. (Larry) Biegler is currently the Head and Bayer University Professor of Chemical Engineering at Carnegie Mellon University. His research interests lie in computer aided process engineering (CAPE) and include flowsheet optimization, optimization of systems of differential and algebraic equations, reactor network synthesis and algorithms for constrained, nonlinear process control. Projects in these areas include analysis and development of nonlinear programming…

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ALOP Colloquium with Prof. Gabriel Wittum

June 12 / 16:00 - 18:00
Trier University E Building, Universitätsring 15
Trier, 54296 Germany
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On Monday, June 12, 2017,  Prof. Gabriel Wittum of King Abdullah University of Science and Technology  will join the ALOP-Colloquium and present his recent work entitledSimulation of Neuronal Signal ProcessingThe crucial feature of neuronal ensembles is their high complexity and variability. This makes modelling and computation very difficult, in particular for detailed models based on first principles. The problem starts with modelling geometry, which has to extract the essential features from those highly complex and variable phenotypes and at the…

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ALOP Colloquium with Dr. Giorgio Ferrari

June 26 / 16:00 - 18:00
Trier University E Building, Universitätsring 15
Trier, 54296 Germany
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On Monday, June 26 2017,  Dr. Giorgio Ferrari with Bielefeld University will join the ALOP-Colloquium and present his recent work entitled On the Optimal Management of Public Debt: a Singular Stochastic Control Problem Consider the problem of a government that wants to reduce the debt-to-GDP (gross domestic product) ratio of a country. The government aims at choosing a debt reduction policy which minimises the total expected cost of having debt, plus the total expected cost of interventions on the debt ratio.…

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September 2017

ALOP Colloquium with Prof. Tim Kelley

September 8 / 10:00 - 12:00
Trier University E Building, Universitätsring 15
Trier, 54296 Germany
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On Friday, September 8, 2017, Prof. Tim Kelley of North Carolina State University  will join the ALOP-Colloquium and present his recent work entitled   Anderson Acceleration   Abstract:   We will discuss recent results on the local convergence of Anderson Acceleration. This is an algorithm for accelerating the convergence of fixed point or Picard iteration. In this talk we will discuss the first convergence results for the method, illustrate the results with an application to radiative transport, discuss issues with…

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October 2017

ALOP-Colloquium with Prof. MK (Mapundi) Banda

October 23 / 16:00 - 18:00
Trier University E Building, Universitätsring 15
Trier, 54296 Germany
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On Monday, October 23, 2017, at 16:00 Prof. MK (Mapundi) Banda of the University of Pretoria will join the ALOP-Colloquium and present his recent work entitledOptimal Control, Stabilization and Parameter Identification for evolution modelsEvolution models governed by the time-dependent partial differential equations will be considered. In this talk, we will present some ideas on optimal control, boundary stabilization and parameter identification for a selection of such models.  For instance, boundary information will be used to stabilise or to identify parameters of the…

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November 2017

ALOP-Colloquium with Dr. Venera Khoromskaia

November 6 / 16:00 - 17:00

 Dr. Verena Khoromskaia of the Max-Planck-Institute für Mathematik in den Naturwissenschaften will join the ALOP-Colloquium and present her recent work entitledTensor numerical methods in computational quantum chemistryon Monday, November 6, 2017 at 16:00. We will meet for coffee prior to her presentation at 15:45 in room E10. The presentation will take place in HS9.

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ALOP-Colloquium with Prof. Boris N. Khoromskij

November 6 / 17:00 - 18:00
Trier University E Building, Universitätsring 15
Trier, 54296 Germany
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On Monday, November 6, 2017,  Prof. Dr. Boris Khoromskij from the Max-Planck-Institute für Mathematik in den Naturwissenschaften will join the ALOP-Colloquium and present his recent work entitledTensor numerical methods for multi-dimensional PDE's and in data modelingon Monday, November 6, 2017 at 17:00.  The presentation will take place in HS9.

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