# Poster Exhibition 2014

The Bonn International Graduate School in Mathematics holds a poster exhibition of current Ph.D. projects each summer term. In the years 2002 to 2006 this was done jointly with the department of physics and astronomy. Since 2007 the poster exhibition is being organised by the Graduate School in Mathematics.

The Poster Exhibition 2014 took place Thursday 10 July 2014 (15:30-18:00) and Friday 11 July 2014 (14:00-15:30.) Members of the Graduate School in Mathematics presented their Ph.D. projects in the form of a poster in the entrance area, the Lipschitz-Hall and Plücker room of the Mathematics Center. All areas of mathematics were represented and the posters showed projects at all stages, from an early sketch to the almost finished thesis.

# BIGS Poster Exhibition 2014

Participant | Supervisor | Poster |

Altinok, Duygu | Sturm, K.-T. | Interacting Particles and Allocation |

Anschlag, Stefanie | Huybrechts, D. | The Hodge conjecture for products of surfaces |

Arroyo Rabasa, Adolfo | Müller, S. | Variational systems with a perimeter penalization |

Baar, Martina Vera | Bovier, A. | Stochastic individual-based models of Adaptive Dynamics |

Becker, Hanno | Stroppel, C. | Khovanov-Rozansky homology |

Berghoff, Christian | Franke, J. | Elliptic Gauß sums and Schoof’s algorithm |

Bhattacharya, Soumya | Zagier, D. | Factorisation and irreducibility of holomorphic eta quotients |

Bohn, Bastian | Griebel, M. | Discretized Nonlinear Manifold Learning - Sparse Grids and Error Analysis |

Brunsch, Sina | Griebel, M. | Parametric Model Order Reduction using Sparse Grids |

Burkow, Markus | Griebel, M. | Numerical simulation of fluid dynamics and corresponding sediment transport processes |

Byrenheid, Glenn | Griebel, M, Ullrich, T. | Sampling on energy-norm based sparse grids |

Decker, Andreas | Franke, J. | Fast calculation of isogenies and modular invariants with regard to primality proofs |

Diehl, Patrick | Schweitzer, M. | Simulation of wave propagation and impact damage in brittle materials using Peridynamics |

Diermeier, Johannes | Conti, S. | A low-volume fraction limit for austenite-martensiteinterfaces in shape-memory alloys |

Durcik, Polona | Thiele, C. | On some multilinear singular integral operators |

Effland, Alexander | Rumpf, M.,Müller S. | Discrete Riemannian Calculus on Shape Space |

Enkelmann, Nils-Edvin | Lück, W. | Pseudoisotopy and Automorphism Groups of Manifolds |

Fedosova, Ksenia | Müller, W. | Analytic torsion and cohomology of arithmetic groups |

Fernengel, Anne | Koepke, P. | On the Continuum Function in Zermelo-Fraenkel Set Theory |

Fuchs, Barbara | Garcke, J. | Stochastic Collocation for DAEs Arising from Gas Network Simulation |

Funke, Florian | Lück, W. | Approximation of L2-Invariants in Group Theory |

Geihe, Benedict | Rumpf, M. | Approximation of Optimal Microstructures in Elastic Shape Optimization |

Gesenhues, Jos | Bebendorf, M. | Improving the stability estimate for ACA |

Gester, Michael | Vygen, J. | VLSI Routing for Advanced Technology Nodes |

Geuenich, Jan | Schröer | Species with Potentials Arising from Triangulations |

Ginster, Janusz | Müller, S. | Generalised rigidity in mixed-growth plasticity |

Gladbach, Peter | Conti, S. | Double relaxation in line-tension energies resulting from multiple slip planes |

Guo, Shaoming | Thiele, C. | Hilbert transform along measurable vector fields constant on Lipschitz curves |

Hargesheimer, Fabian | Karpinsky, M. | Approximability of the Prize Collecting Steiner Tree Problem |

Hartung, Lisa | Bovier, A. | Variable speed Branching Brownian Motion |

Hausmann, Markus | Schwede, S. | Filtrations, lattices and global equivariant homotopy theory |

Heeren, Behrend | Rumpf, M. | Exploring the Geometry of the Space of Shells |

Hofer, Katharina | Beuchler, S. | High-order finite element methods for optimal control problems |

Hornung, Nils | Garcke, J. | Reproducing Kernels and Symmentries of Differential Equations |

Hügel, Max | Rauhut, H. | Compressive Sensing with Radar Applications |

Hullmann, Alexander | Griebel, M. | Fast Methods for Partial Integro-Differential Equations |

Iza Teran, Victor Rodrigo | Garcke, J. | Orbifolds for the Analysis of Simulation Bundles |

Jensen, Lars Thorge | Williamson, G. | Faithfulness of the 2-braid group |

Kierkels, Arthur Hubertus Martinus | Velazquez, J. | Transfer of Energy in the Theory of Weak Turbulence for NLS |

Kirch, Daniel | Rapoport, M. | Towards an alternative description of the Drinfel’d 2-adic halfplane |

Kopfer, Eva | Sturm, K.-Th. | Transportation metrics of chemical reactions |

Körschgen, Alexander | Teichner, P. | The Homotopy Theory of Smooth Spectra |

Krapf, Regula | Koepke, P. | Topological Regularity and Determinacy in Second Order Arithmetic |

Krause, Achim | Teichner, P. | Field theories and topological modular forms |

Kucharczyk, Robert Anselm | Hamenstädt, U. | Fuchsian Groups and Number Theory |

Land, Markus | Lück, W. | Comparing K- and L-theory in the Case of Complex C -algebras |

Leon Delgado, Nestor | Blohmann, C. | Lagrangian Field Theories and Higher Structures |

Loeffler, Johannes | Rossi, C.A. | Logarithmic deformation quantization |

Marko, Roland | Karpinsky, M. | On Approximability, Convergence and Limits of CSP Formulas |

Mayer, Sebastian | Griebel, M.; Ullrich, T. | Randomized Dimensionality Reduction for Binary Classification |

Mayer, Hannah | Bovier, A. | Stochastic modelling of T-cell activation |

Meinel, Joanna | Stroppel, C. | The Affine NilTemperley-Lieb Algebra: Basis, Center, Cellular Structure |

Morgenstern, Philipp | Peterseim, D. | Adaptive analysis-suitable T-mesh refinement with linear complexity |

Müller, Patrick Erich | Bovier, A. | Metastability in Stochastic Dynamics |

Nejjar, Peter | Ferrari, P. | Competition interfaces and 2nd class particles |

Neuen, Christian | Griebel, M. | Non-equilibrium hamiltonian dynamics |

Neukirch, Rebecca | Bovier, A. | Adaptive Dynamics of the Mendelian Diploid Model |

Oettershagen, Jens | Griebel, M. | Optimal approximation in reproducing kernel Hilbert spaces |

Perl, Ricardo | Rumpf, M. | Finite Element Approximation of Variational Shell Problems |

Pieper, Malte Mario | Lück, W. | Assembly maps and pseudoisotopy functors |

Pöttker, Henning | Velazquez, J. | Qualitative Behaviour of PDEs with Non-Diffusive Memory |

Radchenko, Danylo | Zagier, D. | Polylogarithms and Dedekind zeta functions |

Ricke, Charlotte | Schröer, J. | Strongly reduced components |

Rieß, Ulrike | Huybrechts, D. | Chow Rings of Irreducible Symplectic Varieties |

Roos, Joris | Thiele, C. | The parabolic Carleson operator with a quadratic polynomial phase |

Rotter, Daniel | Vygen, J. | Shallow light Steiner trees and their application in Wire Synthesis |

Rüttgers, Alexander | Griebel, M. | Multiscale Simulation of Non-Newtonian Fluids in Three Dimensions |

Schorr, Ulrike | Vygen, J. | Post-Routing Latch Optimization for Timing Closure |

Schreieder, Stefan | Huybrechts, D. | New results on the Schottky problem |

Schubert, Richard | Niethammer, B. | Screening in interacting particle systems |

Silveira Salles, Tomás | Geschke, S. | The shift on the algebra Ρ(ω)/fin and quotients of ßω \ω |

Spiegel, Fabian | Ballmann, W. | Scalar curvature rigidity theorems and versions of Min-Oo’s conjecture |

Spilioti, Polyxeni | Müller, W. | Selberg and Ruelle zeta functions on compact hyperbolic odd dimensional manifolds |

Stojanac, Zeljka | Rauhut, H. | Low-rank Tensor Recovery using Theta Bodies |

Szumiło, Karol | Schwede, S. | Two Models for the Homotopy Theory of Cocomplete Homotopy Theories |

Throm, Sebastian | Niethammer, B. | Smoluchowski’s coagulation equation- Self-similar solutions with fat tails |

Toelkes, Sascha | Rumpf, M. | A phase field method for elastic shape optimization on two scales |

Uraltsev, Gennady | Koch, H. | The Polynomial Carleson Operator Outer measures and variational estimates |

Venn, Raoul | Bebendorf, M. | Nested Matrix Approximation of the Helmholtz-Kernel |

Viehmann, Claus | Karpinsky, M. | On the Approximability of Dense Instances of Covering Problems |

Wilbert, Arik | Stroppel, C. | Topological Springer fibers for the even orthogonal group |

Wilms, Robert | Faltings, G. | “How smooth” is a smooth curve? The δ-function in Arakelov geometry |

Wimmer, Christian | Schwede, S. | Rational global stable homotopy theory |

Winter, Raphael | Velazquez, J. | Irreversible Dynamics in collision free Particle Systems |

Wissel, Daniel | Griebel, M. | Fast Approximation of the Discrete Gauss Transform in Higher Dimensions |

Wu, Sa | Schweitzer, M. | Meshfree Multiscale Methods for Solids |

Yeh, Hung-yu | Klemm, A. | Periods on Calabi-Yau fourfolds |

Zaspel, Peter | Griebel, M. | Kernel-based multi-GPU parallel uncertainty quantification with applications in CFD |

Zerbini, Federico | Zagier, D. | Multiple Zeta Values in Type II Superstring Amplitudes |

Zillinger, Christian | Koch, H. | Linear Inviscid Damping for Monotone Shear Flows |

Zimmer, Raphael | Eberle, A. | Contraction Properties for Stochastic Dynamics in L1-Wasserstein Distance |