Overview Winter Semester 2019/2020
Date  Loca tion  Lecture at 14:15  Colloquium at 16:00 

Monday, 21.10.2019  FU  Otfried Cheong (Bayreuth): Convex Covers and Translation Covers 

Monday, 28.10.2019  HU  Alexandre Vigny (Bremen): Query enumeration and nowhere dense classes of graphs 
Benjamin Hauskeller (HU Berlin): Dynamic Query Evaluation with Sublinear Update Time 
Monday, 04.11.2019  FU  Günter Rote (FU Berlin): Lattice paths with states, and counting geometric graphs via production matrices 
Liana Yepremyan (Oxford): On the size Ramsey number of bounded powers of bounded degree trees 
Monday, 11.11.2019  FU  Tibor Szabó (FU Berlin): Turán numbers, projective norm graphs, quasirandomness 
Raphael Steiner (TU Berlin): Majority Colorings of Sparse Digraphs 
Monday, 18.11.2019  TU  Matthias Reitzner (Osnabrück): Stars of Empty Simplices 
Ansgar Freyer (TU Berlin): Discrete analogs of an inequality by Meyer 
Monday, 25.11.2019  FU  Georg Loho (London School of Economics): Signed tropical convexity 
Manfred Scheucher (TU Berlin): Topological Drawings meet SAT Solvers and Classical Theorems of Convex Geometry 
Monday, 02.12.2019  FU  Talks of the Einstein Workshop on Polytopes and Algebraic Geometry  Talks of the Einstein Workshop on Polytopes and Algebraic Geometry 
Monday, 09.12.2019  TU  Svante Linusson (Stockholm): Limit shape of shifted staircase SYT 
Marcel Celaya (Georgia Tech): The linear span of lattice points in a halfopen lattice parallelepiped 
Monday, 16.12.2019  TU  Paweł Dłotko (Swansea University): Topology in Action 
Alexander Heaton (MPI Leipzig): Applications of algebra to the geometry of materials 
Monday, 23.12.2019  Christmas  no lecture    no colloquium   
Monday, 30.12.2019  New Year's Eve  no lecture    no colloquium   
Monday, 06.01.2020  FU  Frank Sottile (Texas University): Irrational toric varieties and the secondary polytope 
Lukas Kühne (Hebrew University of Jerusalem): Matroid representations by carrangements are undecidable 
Monday, 13.01.2020  TU 
Eric Fusy (Paris): 
Andrei Asinowski (Klagenfurt): Vectorial kernel method and patterns in lattice paths 
Monday, 20.01.2020  FU  Holger Dell (Kopenhagen): Counting and sampling small subgraphs 
Alan Arroyo (ISTAustria): Obstructions in graph drawings 
Monday, 27.01.2020  FU  Haim Kaplan (Tel Aviv):  
Monday, 03.02.2020  FU  Jürgen Herzog (DuisburgEssen):  Sándor KisfaludiBak (MPI Saarbrücken): Separators and exact algorithms for geometric intersection graphs 
Monday, 10.02.2020  FU  Lionel Pournin (Paris):  José Samper (MPI Leipzig): 