# Poster Exhibition 2012

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 2012 took place Thursday 21 June 2012 (15:30-18:00) and Friday 22 June (14:00-15:30 followed by the departmental summer fête). 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.

# Participants

participant | advisor | poster title |
---|---|---|

Abczynski, Anna | Kreck, M. | Cohomology Bott manifolds and cohomological rigidity |

Adelsberger, Jutta | Griebel, M. | Vertical Coordinates in Atmospheric Dynamics |

Arora, Manuel | Saxena, N. | Combinatorial Schemes and Applications to Polynomial Factoring over Finite Fields |

Ayaz, Ulaş | Rauhut, H. | Nonuniform Sparse Recovery with Fusion Frames |

Bartoschek, Christoph Johann | Vygen, J. | Repeater Tree Construction in VLSI Design |

Becker, Hanno | Stroppel, C. | Models for Singularity Categories |

Behrens, Stefan | Teichner, P. | Surface Diagrams of 4-Manifolds |

Bellardini, Alberto | Faltings, G. | The Relative Picard Functor and Logarithmic Geometry |

Benedikter, Niels Patriz | Schlein, B. | Dynamics of Bose-Einstein Condensate in the Gross-Pitaevskii Limit |

Bhattacharya, Soumya | Zagier, D. | Finiteness of Simple Holomorphic Eta Products |

Bierig, Claudio | Chernov, A. | Numerical Methods for Stochastic and Parametric Variational Inequalities |

Bock, Martin | Alt, W. | Coupling of cytoplasm and adhesion determines cell polarization and locomotion |

Bohn, Bastian | Griebel, M. | ANOVA-dimension-adaptive Sparse Grids for Nonlinear Manifold Learning |

Bratsch, Michael | Bebendorf, M. | Preservation of Side Constraints for Hierarchical Matrices |

Burkow, Markus | Griebel, M. | Numerical simulation of sediment transport processes |

Büthe, Jan | Franke, J. | Analytic Methods for the algorithmic Investigation of the Prime Counting Function |

Chan, Allan | Conti, S. | Singularly perturbed variational problems from nonlinear elasticity |

Cramer, Marcos Benjamin | Koepke, P. | Higher-Order Dynamic Predicate Logic |

Erbar, Matthias | Sturm, K.-T. | Ricci curvature of Markov chains and nonlocal operators |

Fernengel, Anne | Koepke, P. | The 𝟐^{κ}-function in Zermelo-Fraenkel set theory |

Franken, Martina | Rumpf, M. | Variational Time Discretization of Willmore Flow |

Frings, Rená | Ferrari, P. | Spatial Persistence for the Airy_{1} and Airy_{2} Processes |

Geihe, Benedict | Rumpf, M. | A Posteriori Error Control for Two-Scale Elastic Shape Optimization |

Geldhauser, Carina | Bovier, A. | Metastability Phenomena in the Allen Cahn stochastic PDE |

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

Golla, Tim | Griebel, M. | Simulation of oleodynamic properties of natural structures |

Gruhlke, Daniel | Eberle, A. | Time-discrete approximations of stochastic gradient flows |

Hader, Bernard | Sturm, K.-T. | Curvature on the Wasserstein space |

Hartung, Lisa | Bovier, A. | The Random Energy Model at the critical temperature |

Heber, Frederik | Griebel, M. | BOSSANOVA - A bond order dissection approach for efficient electronic structure calculations |

Heeren, Behrend | Rumpf, M. | Time-Discrete Geodesics in Shell Spaces |

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

Hoffmann, Michael | Ballmann, W. | Index Theory and Special Holonomy |

Hügel, Max | Rauhut, H. | Compressive sensing with radar applications |

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

Joachimi, Ruth | Hornbostel, J. | Thick Ideals in Equivariant and Motivic Stable Homotopy Categories |

John, Dominik | Koch, H. | On Uniqueness for the Thin-Film Equation |

Kalantarova, Habiba | Koch, H. | Scattering at Solitons |

Kalck, Martin | Schröer, J., Burban, I. | Triangulated categories in singularity theory |

Ketterer, Christian | Sturm, K.-T. | Ricci Curvature Bounds for Euclidean Cones and Warped Products |

Kienzler, Clemens | Koch, H. | Flatness and Regularity for the Porous Medium Equation |

Klitz, Margrit | Griebel, M. | Homogenisation and Numerical Simulation of Flow in Geometries with Textile Microstructures |

Kruse, Thomas | Ankirchner | Skewed Optimal Liquidation & Inverse Optimal Stopping |

Kucharcyk, Robert Anselm | Hamenstädt, U. | Higher Dessins d’Enfants |

Kühl, Philipp | Lück, W. | Surgery Exact Sequences and the Total Surgery Obstruction |

Kühnemund, Andreas | Bebendorf, M. | Adaptive Cross Approximation for Higher-order Tensors |

Kuske, Christian | Bebendorf, M. | Approximation of Multivariate Functions |

Lam, Andrew | Elliott, C. | The Allen–Cahn equation on surfaces |

Loeffler, Johannes | Rossi, C.A. | Logarithmic formality |

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

Meier, Lennart | Schwede, S. | United Elliptic Homology |

Meinel, Joanna | Stroppel, C. | Tensor products of irreducible 𝔰𝔩_{2}-modules: Decomposition rules and endomorphism rings |

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

Metsch, Bram | Griebel, M. | The CGC-ML coarsening scheme for parallel AMG |

Mittmann, Johannes | Saxena, N. | Algebraic Independence of Polynomials in Positive Characteristic |

Müller, Patrick Erich | Bovier, A. | Regularity estimates for metastable diffusion process via coupling methods |

Nahm, Torsten | Koepke, P. | Naproche: Formal Mathematics in Controlled Natural Language |

Nejjar, Peter | Ferrari, M. | A new type of shock in TASEP |

Neuen, Christian | Griebel, M. | Effects of nanostructures on macroscopic physical properties of graphene layers |

Neukirch, Rebecca | Bovier, A. | Metastability in the Zero-Range Process |

Oettershagen, Jens | Griebel, M. | Determination of Optimal Quadrature-rules in Reproducing Kernel Hilbert Spaces |

Ozornova, Viktoriya | Bödigheimer, C.-F. | Factorability of Groups |

Patchkoria, Irakli | Schwede, S. | Rigidity in Equivariant Stable Homotopy Theory |

Raisch, Alexander | Bartels, S. | Finite Elements Methods for Geometric Problems |

Reinarz, Anne | Chernov, A. | Space-time Boundary Element Method for the Heat Equation |

Richarz, Timo | Rapoport, M. | Geometric Satake Equivalences |

Rodenhausen, Moritz | Bödigheimer, C.-F. | Centralisers of Dehn twists in Aut(F_{𝑛})and Out(F_{𝑛}) |

Rüland, Angkana | Koch, H. | Backward Uniqueness of the Heat Equation in Conical Domains |

Runa, Eris | Müller, S. | Gradient Gibbs Measures on lattice |

Rüping, Henrik | Lück, W. | Isomorphism conjectures in K- and L-theory |

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

Saccà, Giulia | Tian, G. | Abelian fibered Calabi-Yau manifolds and Enriques surfaces |

Sartori, Antonio | Stroppel, C. | Categorification of tangle invariants and representations 𝑈_{𝑞}(𝖌𝖑(1, 1)) |

Schmied, Richard | Karpinsky, M. | On Approximability of Bounded Degree Instances of Selected Optimization Problems |

Schneider, Jan | Hougardy, S. | From the Theory of Packing Problems To an Industrial Leaf Layout Generator |

Schottdorf, Tobias Bohumir | Koch, H. | Global existence without decay for quadratic Klein-Gordon equations |

Silveira Salles, Tomás | Geschke, S. | Automorphisms of the Calkin Algebra |

Smirnov, Maxim | Manin, Y. | Gromov-Witten invariants, moduli spaces and quantum cohomology |

Spilioti, Polyxeni | Müller, W. | Ruelle Zeta function and Selberg Trace Formula |

Stein, Luba | Bödigheimer, C.-F. | The Hilbert uniformization of flat G-bundles on Riemann surfaces |

Steinerberger, Stefan | Koch, H. | Stability of Solitons for the generalized Korteweg-de Vries equation |

Stojanac, Željka | Rauhut, H. | Compressive sensing meets tensors |

Suhl, Ulrike | Vygen | (Timing Driven) Placement in VLSI Design |

Svejda, Adela | Bovier, A. | Convergence of time changes in random environments on infinite graphs |

Szumiło, Karol | Schwede, S. | Cofibration Categories and Quasi-categories |

Toelkes, Sascha | Rumpf, M. | A phase field method for elastic shape optimization and stochastic dominance |

Uebis, Hannah | Bovier, A. | Stochastic modelling of the foreign particle recognition in T-Cells |

Vantzos, Orestis | Rumpf, M. | Variational Discretization of Gradient Flows |

Veldman, Jip | Koepke, P. | Approximated Symmetric Extensions |

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

Viazovska, Maryna | Zagier, D. | CM values of higher Green’s functions |

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

Walloth, Mirjam | Bartels, S. | Adaptive numerical simulation of contact problems: Resolving local effects at the contact boundary in space and time |

Weinert, Thilo Volker | Geschke, S. | Idiosynchchromatic Poetry |

Wilms, Robert | Faltings, G. | The 𝛿-function in Arakelov geometry |

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