**Hosts:**

Herbert Edelsbrunner and Uli Wagner

**Coordinates:**

Wednesdays at 1PM in Mondi 3 (Central Building).

Please contact hwagner@ist.ac.at if you want to be notified about upcoming talks.

**Upcoming talks:**

Emo Welzl on March 6 on Connectivity of the Flip-Graph of Triangulations

Currently no more talks are scheduled–feel free to contact hwagner@ist.ac.at if you want to give one.

**Past talks:**

date | speaker | title |
---|---|---|

Wednesday, January 16 2019, 1:00 PM @ Mondi 3 | Rado Fulek | Eliminating Crossings in Drawings of Graphs |

Wednesday, November 14 2018, 1:00 PM @ Mondi 3 | Mehdi Makhul | Probabilities of incidence between lines and a plane curve over finite fields. |

Wednesday, September 12, 1:00 PM @ Mondi 3 | Sergey Avvakumov | Probabilities of incidence between lines and a plane curve over finite fields |

Thursday, August 16, 1:00 PM @ Mondi 3 | Domotor Palvolgyi | Unlabeled compression schemes |

Tuesday, August 14, 1:00 PM @ Mondi 3 | Zur Luria | Simple connectivity in random 2-complexes |

Wednesday, May 30, 1:30 PM @ Mondi 3 | Georg Osang | The Multi-cover Persistence of Euclidean Balls |

Wednesday, May 30, 1:00 PM @ Mondi 3 | Kristof Huszar | On the Treewidth of Triangulated 3-Manifolds |

Wednesday, May 23, 1:00 PM @ Mondi 3 | Mikhail SHKOLNIKOV | Limit of the sandpile group |

Wednesday, April 18, 1:00 PM @ Mondi 3 | Jie Liang | Modeling cell migration and computing exact probability landscape of stochastic networks |

Wednesday, April 11, 1:00 PM @ Meeting room 2nd floor Central Building | Grzegorz Muszynski | Topological Analysis and Machine Learning for Detecting Weather Patterns in Climate Model Output |

Thursday, March 22, 4:00 PM @ Meeting room 2nd floor Central Building | Katharina Olsebock | The Dynamic Wrap Complex in 2D and 3D |

Wednesday, March 7, 1:00 PM @ Mondi 2 | Sergey Avvakumov | How to turn the sphere inside out and other applications of h-principle. |

TUESDAY, March 6, 2:45 PM @ Mondi 2 | Marian Mrozek | Persistence of Morse Decompositions in finite topological spaces. |

MONDAY, February 5, 2:00PM @ Mondi 3 | Ori Parzanchevski | Random walks on (Ramanujan) graphs and complexes |

Wednesday, January 18 (Thursday), 1:00PM @ Mondi 3 | Alexey Glazyrin (University of Texas Rio Grande Valley) | Sets with few distances |

Wednesday, January 17, 1:00PM @ Mondi 3 | Ivan Izmestiev | Non-polytopal spheres and barycentric subdivisions |

Wednesday, December 20, 1:00PM @ Mondi 3 | Teresa Heiss | Persistent Homology of Rips-complexes of Metric Graphs |

Wednesday, December 13, 1:00PM @ Mondi 3 | Stephan Zhechev | From algebra to geometry: How to represent homotopy group elements as simplicial maps. |

Wednesday, December 6, 1:00PM @ Mondi 3 | Fedor Manin | Geometrically bounded embeddings |

Wednesday, September 13, 1:00PM @ Mondi 3 | Pawel Dlotko | Applied persistent homology |

Wednesday, August 16, 12:45PM @ Mondi 3 | Teresa Heiss | Streaming Algorithm for Euler Characteristic Curves of Multidimensional Images |

Wednesday, August 23, 1:00PM @ Mondi 3 | Nora Frankl | On equilateral sets in subspaces of l_\infty^n |

Wednesday, August 16, 12:45PM @ Mondi 3 | Teresa Heiss | Streaming Algorithm for Euler Characteristic Curves of Multidimensional Images |

Wednesday, July 5, 12:45PM @ Mondi 3 | Vojtech Kaluza | Mapping n grid points onto a square forces an arbitrarily large Lipschitz constant |

Wednesday, June 28, 12:45PM @ Mondi 3 | Edgardo Roldan-Pensado | On the colourful Helly theorem |

Wednesday, June 21, 12:45PM @ Mondi 3 | Stephan Zhechev | From algebra to geometry: How to represent homotopy group elements as simplicial maps. |

Wednesday, June 14, 12:45PM @ Mondi 3 | Ziga Virk | Intrinsic persistence of geodesic spaces |

Wednesday, June 7, 12:45PM @ Mondi 3 | Arseniy Akopyan | What figures on the second floor are about. |

Wednesday, April 12, 12:45PM @ Mondi 3 | Bruno Levi | Voronoi Story: To L-infinity and beyond |

Wednesday, March 29, 12:45PM @ Mondi 3 | Alessandro Chiancone (Know Center TU Graz) | Dimensionality reduction: a chat on Sliced Inverse Regression |

Wednesday, February 22, 12:45PM @ Mondi 3 | Arnaud de Mesmay | On the complexity of optimal homotopies in two dimensions. |

Wednesday, February 8, 12:45PM @ Mondi 3 | Mikhail Skopenkov | Discrete field theory and cochain products |

Wednesday, January 25, 12:45PM @ Mondi 3 | Reinhold G. Erben | Interaction between bone structure and hormones |

Wednesday, January 18, 12:45 am @ Mondi 3 | Pratyush Pranav | Persistent Holes in the Universe : A (hierarchical) topology of the cosmic mass distribution |

Wednesday, December 14, 12:45 am @ Mondi 3 | Andrey Bondarenko | Strongly regular graphs and Borsuk's conjecture |

Monday, December 12, 11:00 am @ Mondi 3 | Alexander Plakhov | Invisible bodies with specular surface |

Wednesday Novemember 23, 12:45 pm @ Mondi 3 | Zuzana Patakova | Colorful simplicial depth |

Wednesday Novemember 9, 12:45 pm @ Mondi 3 | Pavel Patak | Generalizing Heawood inequalities for manifolds |

Wednesday October 12, 12:45 pm @ Mondi 3 | Fedor Petrov (Steklov Institute of Mathematics, St. Petersburg) | Combinatorics of the Lipschitz polytope |

Wednesday August 25, 12:45 pm @ Mondi 3 | Arkadiy Skopenkov | Stability of intersections of paths in the plane and the van Kampen obstruction |

Thursday August 18, 13:15 pm @ Mondi 3 | Jeremy Mason | Statistical Topology of the Grain Growth Microstructure |

Wednesday August 17, 12:45 pm @ Mondi 3 | Roman Karasev | Center transversal theorem with improved transversal depth |

August 10, 12:45 pm @ Mondi 3 | Moshe White | Types of Tverberg partitions |

Wednesday, 13 April 2016, 12:45 @ Mondi 3 | Alexey Balitskiy | Shortest closed billiard trajectories in convex bodies: Elementary techniques in non-elementary problems. |

Wednesday, 24 February 2015, 12:45 @ Mondi 3 | Imre Barany | On a geometric Ramsey number |

Wednesday, 16 December 2015, 13:15 @ Mondi 3 | Peter Franek | Robust satisfiability of nonlinear systems |