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List of Talks

This list was updated for the last time in the Summer Semester of 2019. The “What is...?” Seminar still continues, you can find the up-to-date list of talks at the new webpage whatisseminar.xyz.

Summer Semester 2019

Date Location Time Title Speaker
April 12 TU MA 212 13:15 What are... support vector machines? Katerina Papagiannouli (HU)
April 19     No what-is (Good Friday/Karfreitag)  
April 26 BMS Loft 13:00 What is... Steinitz' theorem? Sophia Elia (FU)
May 3 FU SR 019 (Arnimallee 3) 13:15 What is... a g_d^r? Carlos Maestro Pérez (HU)
May 10 Potsdam 14:00 No what-is (Euler Lecture)  
May 17 FU/HU/TU (TBA) TBA TBA TBA
May 24 BMS Loft 13:00 TBA TBA
May 31 FU/HU/TU (TBA) TBA TBA Riccardo Morandin (TU)
June 7 BMS Loft 13:00 TBA TBA
June 14 FU/HU/TU (TBA) TBA TBA Tom Klose (TU)
June 21 BMS Loft 13:30 (Kovalevskaya lunch) TBA TBA
June 28     No what-is (BMS-BGSMath Junior Meeting, please register!)  
July 5 HU? TBA TBA (BMS Friday followed by the von Mises Lecture) TBA
July 12     No what-is (last day of classes)  

Winter Semester 2018/19

Date Location Time Title Speaker
October 19     No what-is (Geo.X Career Day)  
October 26 BMS Loft 13:00 What is.... the secret of the zeta function? Barbara Jung (HU)
November 2     No what-is (BMS soft-skills seminar)  
November 9 Urania 13:00 What is... the Euler characteristic of a polytope? Hannah Sjöberg (FU)
November 16 TU MA212 TBA What is... a topological surface? Georg Lehner (FU)
November 23     No what-is (BMS soft-skills seminar)  
November 30 BMS Loft 13:00 What is... the Alexander polynomial of a knot? Max Krause (TU)
December 7 FU SR140 14:00 What is... the best voting system? Josué Tonelli Cueto (TU)
December 14 BMS Loft 13:30 What is... tensor networks, topological order and entanglement renormalization? Alex Nietner (FU)
December 21     No what-is (last day of classes)  
January 11 FU SR140 14:15 What are... interval graphs, interval orders, and their friends? Simona Boyadzhiyska (FU)
January 18 BMS Loft 13:00 What is... a competing species model? Florian Nie (TU)
January 25     No what-is  
February 1 TU MA212 13:15 What is... a hydrodynamic limit? Tommaso Cornelis Rosati (HU)
February 8 BMS Loft 13:00 What is... it like to lower the mixed volume? Dimitrios Bogiokas (FU)
February 15     No what-is (last day of classes)  
February 19 BMS Loft 10:00 (sharp!) What is... the Wright-Fisher diffusion? Eugenio Buzzoni (TU)

Summer Semester 2018

Date Location Time Title Speaker
April 20     No what-is (BMS soft-skills seminar)  
April 27 BMS Loft 13:00 What is... a matroid? Jorge Alberto Olarte (FU)
May 4 Potsdam 14:00 No what-is (Euler Lecture)  
May 11     No what-is (after holiday)  
May 18 BMS Loft 13:30 What is... Kronecker Coefficients? Levent Doğan (TU)
May 25 No what-is
June 1 BMS Loft 13:00 What is... control theory? Alejandro López (FU)
June 8 TU MA 415 14:00-18:00 "What is?" seminar 10th anniversary
What is... an ultrafilter?
Peter Krautzberger
June 15 BMS Loft 13:00 What is... a Scheme? Marco D'Addezio (FU)
June 22     No what-is (von Mises lecture)  
June 29 BMS Loft 13:00 What is... semialgebraic sets in context? Josué Tonelli-Cueto (TU)
July 6 FU SR032 14:00 What is... a Positional Game? Alp Müyesser (Carnegie Mellon)
July 13 FU Harnack-Haus 13:00 What is... a ranking algorithm? Benjamin Gardiner (TU)
July 20   No what-is

Winter Semester 2017/18

Date Location Time Title Speaker
October 20     No what-is (Geo.X Career Day)  
October 27 BMS Loft 13:00 What is... a random graph? Jannes Münchmeyer (HU)
November 3 TU MA316 14:00 What is... algebraic statistics? Carlos Améndola (TU)
November 10 BMS Loft 13:00 What is... a finite element method? Monika Eisenmann (TU)
November 17     No what-is (BMS soft-skills seminar)  
November 24 Urania 13:00 What is... a spectrahedron? Mario Kummer (MPI Leipzig)
December 1     No what-is (BMS soft-skills seminar)  
December 8 TU MA316 14:00 What is... monomial tropical cones for multicriteria optimization? Georg Loho (TU)
December 15 BMS Loft 13:00 What is … the Teichmüller space of a surface? Lara Skuppin (TU)
December 22     No what-is (Last day of classes)  
January 12 TU MA212 16:00 What are... large deviations? András Tóbiás (TU)
January 19 BMS Loft 13:00 What are... Maxwell's equations? Marek Gluza (FU)
January 26     No what-is  
February 2 BMS Loft 13:00 What is... a homotopy invariant? Alexander Müller (FU)
February 9     No what-is (Week before exams)  
February 16 BMS Loft 13:00 What is... an inverse problem? Héctor Andrade Loarca (TU)
February 20 BMS Loft 10:00 What is... molecular dynamics? (BMS Days) Mohsen Sadeghi (FU)

Summer Semester 2017

Date Location Time Title Speaker
April 21 BMS Loft 13:00 What is... Hamiltonian dynamics? Alexander Fauck (HU)
April 28 TU MA212 14:00 What is... triangulated spheres and Pachner moves? Giulia Codenotti (FU)
May 5 BMS Loft 13:00 What is... variational inference? Patrick Jähnichen (HU)
May 12     No what-is (I, Scientist)  
May 19 Potsdam 14:00 No what-is (Euler Lecture)  
May 26     No what-is (After holiday)  
June 2 BMS Loft 13:00 What is... Iwasawa Theory? Marcin Lara (FU)
June 9     No what-is (BMS soft-kills seminar)  
June 16 HU 13:00 No what-is (von Mises Lecture)  
June 23     No what-is (BMS soft-kills seminar)  
June 30 BMS Loft 13:00 What is... BPP, RP and the other probabilistic complexity classes? Josué Tonelli Cueto (TU)
July 7 TU MA212 13:00 What is... a condition number? Paul Breiding (TU)
July 14 BMS Loft 13:00 What is... Onsager's conjecture? Robert Lasarzik (TU)
July 21 FU 16.00 What is... Gröbner Basis doing in Sudoku? Irem Portakal (FU)

Winter Semester 2016/17

Date Location Time Title Speaker
October 21 BMS Loft 13:00 What is … mixed integer linear programming? Stanley Schade (FU/ZIB)
November 4 BMS Loft 13:00 What is … a modular form? Antareep Mandal (HU)
November 18     No what-is BMS 10th Anniversary
December 2     No what-is  
December 16 BMS Loft 13:00 What is … formal mathematics? Martin Skrodzki (FU)
January 13 BMS Loft 13:00 What is … Randomness Good For? Shagnik Das (FU)
January 27 BMS Loft 13:00 What is … the length of a potato? Josué Tonelli Cueto (TU)
February 10 BMS Loft 13:00 What is … a (Discontinuous) Galerkin Finite Element Method? Lasse Hinrichsen (FU)
February 21 BMS Loft 10:00 What is … Linear Programming? Georg Loho (FU)

Summer Semester 2016

Date Location Time Title Speaker
April 29 BMS Loft 13:30 What is … symplectic geometry? Mara Ungureanu (HU)
May 13 BMS Loft 13:00 What is … a Chow Ring? Fei Ren (FU)
May 27 Potsdam 14:00 No what-is (Euler Lecture)  
June 3 HU 13:00 No what-is (von Mises Lecture)  
June 17 BMS Loft 13:00 What is … an Eigenvector of a Tensor? Kathlén Kohn (TU)
July 8 Harnack-Haus 13:00 What is … a Sphere Packing? Albert Haase (FU)

Winter Semester 2015/16

Date Location Time Title Speaker
October 16 BMS Loft 13:00 What is … representation theory? Patrick Da Silva (HU)
October 30 BMS Loft 13:00 What is … a period? Filippo Nuccio (Université St. Étienne)
November 13 TU Berlin 13:00 What is … reciprocity? Jan Hofmann (FU)
November 27 BMS Loft 13:00 No What-is talk  
December 11 BMS Loft 13:00 What is … Discrete Fourier Analysis? Christoph Spiegel (FU)
January 15 BMS Loft 13:00 What is … a p-adic number? Claudius Heyer (HU)
January 29 BMS Loft 13:00 What is … a stochastic process? Stefan Rüdrich (FU)
February 5 FU Berlin, SR031 16:00 What is … an Origami Constructible Number? Josué Tonelli Cueto (HU)
February 12 BMS Loft 13:00 What is … the Disjoint Paths Problem? Miriam Schlöter (TU)
February 16 BMS Loft 10:00 What is … a Rational Function? Irem Portakal (FU)

Summer Semester 2015

Date Location Time Title Speaker
April 24 BMS Loft 13:00 What is … the complexity of matrix multiplication? Pierre Lairez (TU)
May 08 TU (MA 212) 13:00 What is … a supercritical percolation cluster? Nguyen Tuan Anh (TU)
May 15     No what-is  
May 22 Potsdam 14:00 No what-is (Euler Lecture)  
May 29     No what-is (Workshop on Nonlinear Algebra)  
June 05 FU SR031 16:00 What is … a transfer operator? Adam Nielsen (ZIB)
June 12 BMS Loft 13:30 What is … group homology? Peter Patzt (FU)
June 19 HU 16:00 What is … the heat kernel? Asilya Suleymanova (HU)
June 26 HU 0101 14:00 No what-is (von Mises Lecture)  
July 03 FU/TU/HU 16:00    
July 10 BMS Loft 13:00 What is … Ramsey Theory? Manh Tuan Tran (FU)

Winter Semester 2014/2015

Date Location Time Title Speaker
Oct 24 HU 1.023 16:00 What is … a syzygy? Daniele Agostini (HU)
Oct 31 BMS Loft 13:00 What is … an Ehrhart Polynomial? Hannes Pollehn (TU)
Nov 14 BMS Loft 13:30 What is … a CAT(0) space? Sebastian Meinert (FU)
Nov 28 BMS Loft 13:00 What is … a (complex) hyperplane arrangement? Arnau Padrol Sureda (FU)
Dec 5 FU SR031 16:00 What is … the ham sandwich theorem? Florian Frick (TU)
Dec 12 BMS Loft 13:00 What is … a Hamiltonian system? Jonathan Youett (FU)
Jan 9 BMS Loft 13:00 What is … sparse and redundant representation modeling for image processing? Wang-Q Lim (TU)
Jan 16 TU MA313 16:00 What is … a van Kampen Obstruction Cocycle? Isaac Mabillard (IST Austria)
Jan 23 FU SR025/026 13:00 What is … the probabilistic method? Shagnik Das (FU)
Feb 6 BMS Loft 13:00 What is … (algebraic) complexity theory? Jesko Hüttenhain (TU)

Summer Semester 2014

Date Location Time Title Speaker
Apr 25 BMS Loft 13:00 What is … the Navier-Stokes equation? Ariane Papke (FU)
May 9 BMS Loft 13:00 What is … a random graph? Adam Streck (FU)
May 16 Potsdam 14:00 Euler Lecture  
May 23 HU 0311 13:15 What is … a partial zeta function? Miguel Grados (HU)
Jun 6 BMS Loft 13:00 What is … an isohedral tiling? Michael Joos (TU)
Jun 13 HU 0101 14:00 von Mises Lecture  
Jun 20 BMS Loft 13:00 What is … the moduli spaces of curves? Giulia Battiston (FU)
Jun 27 HU 1.023 16:00 What is … the Atiyah-Singer Index Theorem? Lucas Braune (IMPA Rio de Janeiro)
Jul 4 BMS Loft 13:00 What is … a Riemannian manifold? Lara Skuppin (TU)
Jul 11 FU SR031 16:00 What is … Time-of-Death Modeling? Jonas Krone and Zoi Tokoutsi (FU)
Jul 18 BMS Loft 13:30 What is … a gyroid? Ulrich Reitebuch (FU)

Winter Semester 2013/2014

Date Location Time Title Speaker
Oct 18 BMS Loft 13:00 What is … combinatorial rigidity? Louis Theran (FU)
Oct 25 HU 1.023 16:00 What is … a hyperreal number? Ugur Dogan (HU)
Nov 1 BMS Loft 13:30 What is … a graph limit? Codrut Grosu (FU)
Nov 8 TU MA742 16:00 What is … the relation between Laplace transform and Z-transform? Deniz Genlik (TU)
Nov 15 BMS Loft 13:00 What is … the conformal geometry of surfaces? Wayne Lam (TU)
Nov 22 FU SR031 16:00 What is … mean curvature flow and their self-shrinkers? Keita Kunikawa (Tohoku Univ)
Nov 29 TU MA544 13:00 What is … a Wasserstein distance? Matthias Liero (WIAS)
Dec 6 HU 1.023 16:00 What is …. a Grassmannian? Eva Martinez (HU)
Dec 13 BMS Loft 13:00 What is … the Burger's equation and heat equation? Juan Camilo Orduz (HU)
Jan 10 ZIB 13:00 What is … the representation theory of finite groups? Peter Patzt (FU)
Jan 17 BMS Loft 13:00 What is … a 4D object? Faniry Razafindrazaka (FU)
Jan 24 FU SR031 16:00 What is … the spacetime constraints paradigm? Christoph von Tycowicz (FU)
Jan 31 BMS Loft 13:15 What is … a Carleson operator? Yizhi Sun (TU)

Summer Semester 2013

Date Location Time Title Speaker
Apr 19 BMS Loft 13:00 What is … a higher order tensor decomposition? Max Pfeffer (TU)
Apr 26 HU 1.023 16:00 What is … an L-function? Miguel Grados (HU)
May 3 BMS Loft 13:00 What is … the Nash embedding theorem? Ariane Beier (Potsdam)
May 31 Potsdam   Euler Lecture  
Jun 7 FU SR031 16:00 What is … a subgradient? Elias Pipping (FU)
Jun 14 HU 0119   von Mises Lecture  
Jun 21 BMS Loft 13:00 What are … abstract functions and weak convergence? Christian Kreusler (TU)
Jun 28 TU MA313 16:00 What is … matrix completion? Franz Király (TU)
Jul 5 BMS Loft 13:00 What is … a self-avoiding random walk? Giovanni Conforti (HU)
Jul 12 BMS Loft 13:15 What is … a variational inequality? Carsten Gräser (FU)

Winter Semester 2012/2013

Date Location Time Title Speaker
Oct 19 BMS Loft 13:00 What is … a Smoke Ring? Felix Jakob Knöppel (TU)
Oct 26 TU MA212 16:00 What is … persistent homology? Mijail Guillemard (TU)
Nov 2 BMS Loft 13:00 What is … a quaternion algebra? Christian Wald (HU)
Nov 9 HU 1.023 16:00 What is … a Bruhat-Tits tree? Inder (HU)
Nov 16     RTG Stochastic Analysis Colloquium  
Nov 23 FU SR031 16:00 What is … a regular map? Faniry Razafindrazaka (FU)
Nov 30 BMS Loft 13:00 What is … a spacetime singularity? Phillipo Lappicy (FU)
Dec 7 HU 1.023 17:30 What is … a Hodge locus? Ananyo Dan (HU)
Dec 14 BMS Loft 13:00 What is … SU(2) and why does it double-cover SO(3)? Florian Frick (TU)
Jan 11     IRTG Moduli and Automorphic Forms Colloquium  
Jan 18 TU MA313 16:00 What is … a quasiconformal mapping? Isabella Thiesen (TU)
Jan 25 BMS Loft 13:15 What is … a j-invariant? Emre Sertoz (HU)
Feb 1 FU SR031 16:00 What is … a monotonicity formula? Ahmad Afuni (FU)
Feb 8 BMS Loft 13:00 What is … a rational tangle? Silvia de Toffoli (TU)
Feb 15 TU MA313 16:00 What is … a Palindromic Eigenvalue Problem? Christian Schröder (TU)
Feb 19 BMS Loft 10:00 What is... a positional game? Dennis Clemens (FU)

Summer Semester 2012

Date Location Time Title Speaker Video
April 13 TU MA212 16:00 What is … a spectral method? Maciek Korzec (TU)
April 20 BMS Loft 13:00 What is... a dissipative weak solution? Romain Nguyen (FU)
April 27 HU 1.023 14:00 What is … a path-following method? Jennifer Rasch (HU)
May 4 FU SR031 16:00 What is … software development? Kristian Rother
May 11 Potsdam   Euler Lecture  
May 18 TU MA212 16:00 What is … a differential inclusion? Shahrad Jamshidi (FU)
May 25 FU SR031 16:00 What is … a configuration space? Dror Atariah (FU)
June 1 HU 1.023 16:00 What is … a problem in mathematical finance? Julio Backhoff (HU)
June 8 BMS Loft 13:00 What is … a group action? Mikola Lysenko (UW Madison)
June 15 TU MA212 16:00 What is … a Dirac operator? Juan Orduz (HU)
June 22 BMS Loft 13:00 What is … the Fabricius-Bjerre theorem? Felix Günther (TU) play
June 29 BMS Loft 13:00 What is … a group representation? Giovanni de Gaetano (HU)
July 6 BMS Loft 13:00 What is … Brownian motion? Adrian Gonzalez Casanova (TU)
July 13 HU 1.023 16:00 What is … Ext and its applications? Hannah Enders (HU)

Winter Semester 2011/2012

Date Location Time Title Speaker
October 21 BMS Loft 13:00 What is … diffusion? Maciek Korzec (TU)
October 28 BMS Loft 13:00 What is … Tropical Geometry? Cesar Ceballos (FU)
November 4 HU 1.023 16:00 What is …a zeta function? David Ouwehand (HU)
November 11     Kovalevskaya Lecture  
November 18 FU SR031 16:00 What is … a Gröbner basis in a polynomial ring? Andre Mialebama (FU)
November 25 TU MA212 16:00 What is … the Lagrangian relaxation of an integer program? Jonad Pulaj (ZIB)
December 2 BMS Loft 13:00 What is … a lattice in a Lie group good for? Barbara Jung (HU)
December 9 BMS Loft 13:00 What is … propagating interfaces and level set methods? Antoine Laurain (HU)
January 6 BMS Loft 13:00 What is … a shearlet? Wang-Q Lim (TU)
January 20 BMS Loft 13:00 What is … an independent transversal? Lothar Narins (FU)
January 27 TU MA004 16:00 What is … the connection between the Kantian Intuition of Mathematical Objects and Diagrams? Özge Ekin (FU)
February 3 BMS Loft 13:00 What is … Risk? Samuel Drapeau (HU)
February 10 HU 1.023 16:00 What is … a Feynman integral? Christian Bogner (HU)
February 22 BMS Loft   BMS Days: What is … the fundamental group and covering spaces? Fabian Lenhardt (FU)

Summer Semester 2011

Date Location Time Title Speaker Video
April 15 BMS Loft 11:45 What is … a Modular form? Anil Aryasomayajula (HU) play
April 22     Easter Holiday    
April 29 BMS Loft 12:00 What is … the Kuhn-Tucker theorem? Thomas Lehmann (ZIB) play
May 6 TU MA212 16:00 What is … an infinitesimal? Thomas El Khatib (TU) play
May 13 BMS Loft 12:00 What is … a graph? Daniel Heldt (TU)  
May 20 Potsdam   Euler Lecture    
May 27 BMS Loft 12:00 What is … the direct method in the calculus of variations? Beatrice Bugert (WIAS)  
June 3     Holiday    
June 10 BMS Loft 13:00 What is … a moduli space? Fabian Müller (HU) play
June 17 FU A6 007/8 16:00 What is … a sheaf? Nikolai Beck (FU)  
June 24 BMS Loft 13:00 What is … linear programming? Ambros Gleixner (ZIB)  
July 1 Adlershof   Richard von Mises Lecture    
July 8 BMS Loft 13:00 What is … a Green's function? Marcel Ortgiese (TU)  
July 15 HU 1.023 16:00 What is … a matroid? Markus Hihn (HU)  

Winter Semester 2010/2011

Date Location Time Title Speaker Video
October 22 BMS Loft 14:00 What is … a Catalan Number? Jean-Philippe Labbé (TU)  
October 29 TU MA212 16:00 What is … Hilbert's 17th Problem? Moritz Schmitt (TU)  
November 5 BMS Loft 15:30 What is … a stable marriage? Ágnes Cseh (TU) play
November 12 HU 1.023 16:00 What is … a selflocator? Heinrich Mellmann (HU)  
November 19 FU SR031 16:00 What is … a multifunction? Klebert Kentia (HU) play
November 26 BMS Loft 12:30 What is … the origin of elliptic functions? Barbara Jung (HU) play
December 3 BMS Loft 12:30 What is … the probabilistic method? Anita Liebenau (FU) play
December 10 BMS Loft 12:45 What is … cognitive neuroscience? Roland Friedrich (HU)  
January 7 FU SR031 16:30 What is … a derived category? Andreas Hochenegger (FU)  
January 14 BMS Loft 12:45 What is … a Diophantine equation? Stefan Keil (HU) play
January 21 TU MA212 16:30 What is … a random walk on a network? Natasa Djurdjevac (FU)  
January 28 BMS Loft 12:45 What is … math blogging? Felix Breuer (FU)  
February 4 HU 1.023 16:00 What is … the exit problem? Han Lie (HU)  
February 11 BMS Loft 12:45 What is … P vs NP? Jannik Matuschke (TU) play
February 18 TU MA 212 16:30 What is … a weak derivative? Stefan W. von Deylen (FU)  
February 22 BMS Loft 9:30 What is … a matroid? Matthias Lenz (TU)  

Summer Semester 2010

Date Location Time Title Speaker Video
April 16 FU SR031 16:00 What is … Hilbert's 16th problem? Eyal Ron (FU) play
April 23 BMS Loft 12:30 What is … a Theta Body? Annie Raymond (TU)  
April 30 TU MA212 17:00 What is … a Killing vector field? Mimi Tsuruga (FU) play
May 7 BMS Loft 12:30 What is … a Fourier Series? Jerry Gagelman (TU)  
May 14 HU 1.023 16:00 What is … the big deal with math and music? Aaron Greicius (HU)  
May 21 BMS Loft 12:30 What is … a zeta function? Nicholas Schmidt (HU)  
May 28 Potsdam 14:00 Euler Lecture    
June 4 BMS Loft 12:30 What is … a linear system of plane curves? Angela Ortega (HU)  
June 11 HU 1.023 16:00 What is.. the classifying space of a category? Stephan Müller (HU)  
June 18 BMS Loft 12:30 What is … Polya theory? Emerson Leon (TU)  
June 25 FU SR031 16:30 What is … a Hybrid Automata? Shahrad Jamshidi (FU) play
July 2 TU MA851 10:30 What are … large deviations? Hanna Döring (TU)  
July 9 FU SR031 16:00 What is … phylogenetic algebraic geometry? Kaie Kubjas (FU) play

Winter Semester 2009/2010

Date Location Time Title Speaker Video
October 16 FU SR031 4pm What is … a Gröbner Basis? René Birkner (FU)  
October 23 BMS Loft 12:30 What is … Algorithmic Differentiation? Hernan Leovey (HU)  
October 30 TU MA 212 5pm What is … a Facet Massacre? Bruno Benedetti (TU)  
November 6 BMS Loft 3:30 What is … a Self-Avoiding Random Walk? Noemi Kurt (TU)  
November 13 FU SR031 4pm What is … Morse Theory? Carsten Schultz (TU) play
November 20 FU SR031 12:30 What is … a Moduli Space? Nicola Tarasca (HU)  
November 27 TU MA 212 5pm What is … a Quantum Group? Inna Lukyanenko (TU) play
December 4 BMS Loft 12:30 What is … a Seifert Surface? Silvia de Toffoli (TU)  
December 11 TU MA 041 2:30 Introduction to Tropical Geometry Christian Haase (FU)  
December 18 BMS Loft 12:30 What is … a Rough Path? Joscha Diehl (HU)  
January 8 BMS Loft 12:30 What is … a Geodesic? Tobias Pfeiffer & Dror Atariah (FU)  
January 15 FU SR031 4pm What is … a Semimartingale? Plamen Turkedjiev (HU) play
January 22 BMS Loft 12:30 What is … a Language Game? Hartwig Mayer (HU) play
January 29 TU MA 212 5pm What is … Multigrid? Oliver Sander (FU)  
February 5 BMS Loft 12:30 What is … a Graph Associahedron? Carsten Lange (FU)  

Summer semester 2009

Date and place Title Speaker
April 24, @BMS, What is... the Adaptive Finite Element Method? Joscha Gedicke
May 1 (General Holiday) ---
May 8 @BMS What is.. the Dedekind zeta function? Anna Posingies (HU)
May 15 BMS@TU-lounge What is.. entropy? Yvon Vignaud
May 22 @FU What is … a Goppa Code? Nathan Ilten
May 29 Euler Lecture @Potsdam ---
June 5 @FU What is... a flag vector? Axel Werner (ZIB)
June 12 @Adlershof Mises Lecture ---
June 19 @BMS What is … the field with one element? Laura Hinsch (FU Berlin)
June 26 @FU What is … the square root of a graph? Robin Scholz (Potsdam)
July 3 @FU What is … topological dynamics? Peter Krautzberger
July 10 BMS Summer Outing @Golm ---
July 17 @FU    

Winter semester 2008 / 2009

Datum und Ort Thema Vortragender
17. Okt., @BMS-Fridays Vorstellung des Seminars (@ BMS-Friday) N.N.
24. Okt., @FU What is... the Random Graph? Stefanie Frick (FU Berlin)
31. Okt., @BMS-Fridays What is... Homotopical Algebra? (@ BMS-Friday) Anton Dochtermann (TU Berlin)
07. Nov., @FU What is... deformation? Nathan Ilten (FU Berlin)
14. Nov., @BMS-Fridays What is an elliptic curve? / Basic Notions in algebraic and arithmetic geometry Anna Pippich / Fritz Hörmann (HU Berlin)
21. Nov., @FU What are … loops and the fundamental group? Dror Atariah
28. Nov., @BMS-Fridays What is … geometric knot theory? Barbara Jablonska (TU Berlin)
05. Dez., @FU What is … Hindman's theorem? Peter Krautzberger
12. Dez., @BMS-Fridays What is … spectral expansion? Anna Pippich (HU)
19. Dez., @FU What is … similarity of shapes? Daria Schymura (FU)
09. Jan., @BMS-Fridays What is … the P vs NP problem? Matthias Lenz (TU)
16. Jan., @FU What is … an averaging principle? Carsten Hartmann (FU)
23. Jan., @BMS-Fridays What is … the Birch and Swinnerton-Dyer conjecture? Fritz Hörmann
30. Jan., @FU What is … a Fraisse construction? Artem Chernikov
06. Feb., @BMS-Fridays What is … Helly's theorem? Mareike Massow (TU)
13. Feb., @FU What is... Brownian motion? Plamen Turkedjiev

Summer semester 2008

Datum und Ort Thema Vortragender
Donnerstag, 17. Juli, 16 Uhr c.t., A6 Raum 025/026 What is... the chromatic number of the plane? Michael Payne
Donnerstag, 3. Juli, 10 Uhr c.t., A6 Raum 031 Was ist eigentlich... das Kontinuum und was ist sein Problem? Gido Scharfenberger-Fabian
Donnerstag, 26. Juni, 10 Uhr c.t., A6 Raum 031 Was ist eigentlich... eine sinnvolle Erweiterung der Halbgruppe der natürlichen Zahlen? Peter Krautzberger
Donnerstag, 19. Juni, 10 Uhr c.t., A6 Raum 031 Was ist eigentlich... eine sinnvolle Verallgemeinerung des Zwischenwertsatz? Felix Breuer
Donnerstag, 12. Juni, 10 Uhr c.t., A6 Raum 031 Was ist eigentlich... eine Garbe? Nathan Ilten
Donnerstag, 5.Juni, 10 Uhr c.t., A6 Raum 031 Was ist eigentlich... die Schälung eines Polytops? Frederik von Heymann
Donnerstag, 29. Mai, 10 Uhr c.t., A6 Raum 031 Was ist eigentlich... der Ricci-Fluss? Tobias Marxen
Donnerstag, 22. Mai, 17 Uhr, A6 Raum 031 Was ist eigentlich... ein Ultrafilter? (und was kann man damit anstellen?) Peter Krautzberger
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