Abbreviations
FU: Freie Universität Berlin. HU: Humbolt-Universität zu Berlin. Ol: On-line. Ot: Other.
TBA: To be arranged. TU: Technische Universität Berlin. Ur: Urania. Vn.: Venue. WIAS: Weierstraß-Institut für Angewandte Analysis und Stochastik. ZIB: Zuse-Institut Berlin.
Dates given in the format YYYY/MM/DD. Links to the talks can be found in the symbol “”.
2024/25
Winter Semester
Talks will be in person. Feel free to approach us if you would like to give a talk!
| Date | Vn. | Title of talk | Speaker | |
| 2024/11/01 | TU | What is... Topological Data Analysis? | Nicolas Weiss (HU Berlin) | |
| 2024/11/15 | HU | No talk (Farewell for Jürg Kramer | | |
| 2024/11/29 | Urania | No talk | | |
| 2024/12/13 | FU | What is... Kazhdan's Property (T)? | Sanaz Pooya (UP) | |
| 2025/01/10 | FU | tba | tba | |
| 2024/01/24 | Urania | tba | tba | |
2023/24
Summer Semester
The MATH+ colloquia are taking place in presence — we will be having in-person talks (but most are streamed online). Feel free to approach us if you would like to give a talk!
| Date | Vn. | Title of talk | Speaker | |
| 2024/04/19 | HU | What are ... holomorphic symplectic varieties? | Vasily Rogov (HU Berlin) | |
| 2023/05/03 | FU | What are... sphere packing lower and upper bounds? | Ji Hoon Chun | |
| 2024/05/24 | | No talk (Euler lecture in Potsdam) | | |
| 2024/05/31 | TU | What is... hyperbolic geometry? | Kanishka Katipearachchi | |
| 2024/06/14 | | No talk | | |
| 2024/06/28 | ZIB | What are... PINNs? | Marwa Zainelabdeen | |
| 2024/07/12 | PTB | What are... gradient flows and optimal transport for machine learning and optimization? | Jia-Jie Zhu | |
Winter Semester
Talks will be in person. Most talks, unfortunately, will not be livestreamed. Feel free to approach us if you would like to give a talk!
| Date | Vn. | Title of talk | Speaker | |
| 2023/11/03 | FU | What is (integer) linear programming? | Ekin Ergen | |
| 2023/11/17 | TU | What is a low-complexity coloring? | Jonas Köppl | |
| 2023/12/01 | FU | What is a sofic group? | Manuel Staiger | |
| 2023/12/15 | HU | What is a Fukaya category? | Muhammed E. Guelen | |
| 2024/01/12 | TU | What is a tropical plane curve? | Kamillo Ferry | |
| 2024/01/26 | FU | What is algebraic K-theory? | Vittorio di Fraia | |
| 2024/02/09 | TU | What is a (multi-type) branching process? | Marta dai Pra | |
2022/23
Summer Semester
The MATH+ colloquia are taking place in presence — we will be having in-person talks (but also streamed online). Feel free to approach us if you would like to give a talk!
| Date | Vn. | Title of talk | Speaker | |
| 2023/04/28 | HU | What is an Eisenstein series? | Marco Flores (HU) | |
| 2023/05/05 | | No talk (Euler lecture in Potsdam) | | |
| 2023/05/12 | FU | What is important in mathematical modeling of materials? | Lukas Abel (HU) | |
| 2023/05/26 | TU | What is an interacting particle system? | Musxhu (Julian) Kern (WIAS) | |
| 2023/06/09 | FU | What is a group C*-algebra? | Dr. Sanaz Pooya (U Potsdam) | |
| 2023/07/07 | FU | What is the blow-up method? | Dennis Chemnitz (FU) | |
Winter Semester
Talks will be in person, but we will be livestreamed as well. Feel free to approach us if you would like to give a talk!
| Date | Vn. | Title of talk | Speaker | |
| 2022/10/21 | FU | What is a semialgebraic set? | Kyle Huang (FU) | |
| 2022/11/04 | HU | What is a Grothendieck topology? | Gari Yamel Peralta Alvarez (HU) | |
| 2022/11/18 | | No talk | | |
| 2022/12/02 | HU | What is tame geometry? | Paul Brommer-Wierig (FU) | |
| 2022/12/16 | TU | What is a k-tensor? | Silas Rathke (FU) | |
| 2023/01/13 | TU | What is a rational variety? | Andrea Di Lorenzo (HU) | |
| 2023/01/27 | HU | What is an infinity structure? | Dingyu Yang (HU) | |
| 2023/02/10 | TU | What is backpropagation? | Shpresim Sadiku (TU, ZIB) | |
2021/22
Summer Semester
The MATH+ colloquia are taking place in presence again — we will be having in-person talks (but also streamed online). Feel free to approach us if you would like to give a talk!
| Date | Vn. | Title of talk | Speaker | |
| 2022/04/29 | TU | What is epidemic modeling? | Johannes Zonker (FU) | |
| 2022/05/13 | TU | What is a sphere packing? | Ji Hoon Chun (TU) | |
| 2022/05/20 | | No talk | | |
| 2022/06/03 | TU | What is submodularity? | Khai Van Tran (TU) | |
| 2022/06/17 | HU | What is a McKean-Vlasov process? | Martha Nansubuga (HU) | |
| 2022/07/01 | HU | What is a probabilistically checkable proof? | Levent Doğan (TU) | |
| 2022/07/15 | TU | What is the generalized Poincaré conjecture? | Ekin Ergen (TU) | |
Winter Semester
Due to the current situation, the MATH+ Fridays will take place online, and so will our seminar talks. Feel invited to approach us to give a virtual talk!
| Date | Vn. | Title of talk | Speaker | |
| 2021/10/22 | Ol | What is rough volatility? | Simon Breneis (WIAS) | |
| 2021/11/05 | | No talk | | |
| 2021/11/19 | Ol | What is fair division? | Jannik Peters (TU) | |
| 2021/12/03 | Ol | What is resurgence theory? | Pierre Clavier (IRIMAS, Université de Haute Alsace) | |
| 2021/12/17 | Ol | What is a modular curve? | Marco Flores (HU) | |
| 2022/01/14 | | No talk | | |
| 2022/01/28 | Ol | What is a regular polytope in 3D? | Henriette Lipschütz (FU) | |
| 2022/02/11 | Ol | What is the direct method of calculus of variations? | Anastasija Pesic (HU) | |
| 2022/02/22 | Ol | What is Uncertainty Quantification? | Phillipp Wacker (FAU Erlangen-Nürnberg) | |
| 2022/02/22 | Ol | What is the Riemann-Hurwitz formula? | Dominik Gutwein (HU) | |
2020/21
Summer Semester
Due to the ongoing pandemic, the MATH+ Fridays will take place online, and so will our seminar talks. Feel invited to approach us to give a virtual talk!
| Date | Vn. | Title of talk | Speaker | |
| 2021/04/16 | Ol | What is a tree decomposition? | Raphael Steiner (TU) | |
| 2021/05/07 | Ol | What are Conditional Gradients? | Elias Wirth (TU/ZIB) | |
| 2021/05/21 | Ol | What is a finite simple group? | Kıvanç Ersoy (FU) | |
| 2021/05/28 | | No talk | | |
| 2021/06/18 | | No talk | | |
| 2021/07/02 | Ol | What is persistent homology? | Ivan Spirandelli (U Potsdam) | |
| 2021/07/09 | Ol | What is variational image processing? | Clemens Sirotenko (WIAS) | |
| 2021/07/16 | Ol | What is Floer homology? | Paramjit Singh (HU) | |
Winter Semester
Due to the ongoing pandemic, the MATH+ Fridays will take place online, and so will our seminar talks. Feel invited to approach us to give a virtual talk!
| Date | Vn. | Title of talk | Speaker | |
| 2020/12/11 | Ol | What is Noether's theorem? | Niklas Martensen (HU) | |
| 2021/01/15 | Ol | What is an expander graph? | Alp Müyesser (FU) | |
| 2021/01/22 | Ol | What is a multigrid method? | Felix Baumann (ZIB) | |
| 2021/02/05 | Ol | What is a Coulomb gas? | Gaëtan Borot (HU) | |
| 2021/02/19 | | No talk | | |
| 2021/03/02 | Ol | What is an image in mathematics? | Johannes von Lindheim (TU) | |
| 2021/03/02 | Ol | What is a matrix model? | Raphaël Belliard (HU) | |
2019/20
Summer Semester
Due to the pandemic, the MATH+ Fridays are mostly cancelled this semester, and we cannot offer physical talks either. However, we are able to host virtual seminar talks. Feel invited to approach us to give a virtual talk!
| Date | Vn. | Title of talk | Speaker | |
| 2020/06/05 | Ol | What is an ergodic decomposition of invariant measures? | Shah Faisal (HU) | |
Winter Semester
| Date | Vn. | Title of talk | Speaker | |
| 2019/10/07 | FU | What is the probabilistic analysis of a condition number? | Josué Tonelli-Cueto (TU) | |
| 2019/10/08 | FU | What is a nonnegativity certificate? | Janin Heuer (TU Braunschweig) | |
| 2019/10/09 | FU | What is estimation for Gaussian models? | Carlos Amendola (TU München) | |
| 2019/10/10 | FU | What is $M_{g,n}$? | Dominic Bunnett (TU) | |
| 2019/10/11 | FU | What are 32, 462, 4224, ... counting? | Jean-Philippe Labbé (FU) | |
| 2019/10/18 | Ur | What is the point of pointless topology? | Georg Lehner (FU) | |
| 2019/10/25 | | No talk | | |
| 2019/11/01 | | No talk | | |
| 2019/11/08 | Ur | What are algebraic curves and their tropical friends? | Dominic Bunnet (TU)
Marta Panizzut (TU) | |
| 2019/11/15 | | No talk | | |
| 2019/11/22 | | No talk | | |
| 2019/11/29 | Ur | What is the role of convexity in variational problems? | Janusz Ginster (HU) | |
| 2019/12/06 | | No talk | | |
| 2019/12/13 | | No talk | | |
| 2019/12/20 | | No talk | | |
| 2020/01/10 | | No talk | | |
| 2020/01/17 | Ur | What is the behavior of random graphs? | Ander Lamaison (FU) | |
| 2020/01/10 | | No talk | | |
| 2020/01/31 | TU | What is gaussian multiplicative chaos? | Paul Hager (TU) | |
| 2020/02/07 | | No talk | | |
| 2020/02/18 | Ur | What is the dimension of a partial order? | Felix Schröder (TU) | |
2018/19
Summer Semester
| Date | Vn. | Title of talk | Speaker | |
| 2019/04/12 | TU | What are support vector machines? | Katerina Papagiannouli (HU) | |
| 2019/05/10 | | No talk | | |
| 2019/04/26 | Ur | What is Steinitz's theorem? | Sophia Elia (FU) | |
| 2019/05/03 | FU | What is a g_d^r? | Carlos Maestro Pérez (HU) | |
| 2019/05/10 | | No talk | | |
| 2019/05/17 | | No talk | | |
| 2019/05/24 | Ur | What is Minkowski geometry? | Fei Xue (TU) | |
| 2019/05/31 | TU | What is a differential-algebraic equation? | Riccardo Morandin (TU) | |
| 2019/06/07 | Ur | What are Betti numbers? | Marta Panizzut (TU) | |
| 2019/06/14 | TU | What is a regularity structure? | Tom Klose (TU) | |
| 2019/06/21 | Ur | What is Klein's $j$-invariant? | Gari Yamel Peralta Álvarez (HU) | |
| 2019/06/28 | | No talk | | |
| 2019/07/05 | HU | What is a random walk in random environment? | Anna-Lisa Sokol (TU) | |
| 2019/07/12 | | No talk | | |
Winter Semester
| Date | Vn. | Title of talk | Speaker | |
| 2018/10/19 | | No talk | | |
| 2018/10/26 | Ur | What is the secret of the zeta function? | Barbara Jung (HU) | |
| 2018/11/02 | | No talk | | |
| 2018/11/09 | Ur | What is the Euler characteristic of a polytope? | Hannah Sjöberg (FU) | |
| 2018/11/16 | TU | What is a topological surface? | Georg Lehner (FU) | |
| 2018/11/23 | | No talk | | |
| 2018/11/30 | Ur | What is the Alexander polynomial of a knot? | Max Krause (TU) | |
| 2018/12/07 | FU | What is the best voting system? | Josué Tonelli-Cueto (TU) | |
| 2018/12/14 | Ur | What are tensor networks, topological order and entanglement renormalization? | Alex Nietner (FU) | |
| 2018/12/21 | | No talk | | |
| 2019/01/11 | FU | What are interval graphs, interval orders, and their friends? | Simona Boyadzhiyska (FU) | |
| 2019/01/18 | Ur | What is a competing species model? | Florian Nie (TU) | |
| 2019/01/25 | | No talk | | |
| 2019/02/01 | TU | What is a hydrodynamic limit? | Tommaso Cornelis Rosati (HU) | |
| 2019/02/08 | Ur | What is like to lower the mixed volume? | Dimitrios Bogiokas (FU) | |
| 2019/02/15 | | No talk | | |
| 2019/02/19 | Ur | What is the Wright-Fisher diffusion? | Eugenio Buzzoni (TU) | |
2017/18
Summer Semester
| Date | Vn. | Title of talk | Speaker | |
| 2018/04/20 | | No talk | | |
| 2018/04/27 | Ur | What is a matroid? | Jorge Alberto Olarte (FU) | |
| 2018/05/04 | | No talk | | |
| 2018/05/11 | | No talk | | |
| 2018/05/18 | Ur | What are Kronecker Coefficients? | Levent Doğan (TU) | |
| 2018/05/25 | | No talk | | |
| 2018/06/01 | Ur | What is control theory? | Alejandro López (FU) | |
| 2018/06/08 | TU | $``\vec{w}h\alpha\mathfrak{t}\;\; i\mathbb{S}\ldots\text{?''}$ Seminar 10th Anniversary
What is an ultrafilter? |
Peter Krautzberger |
|
| 2018/06/15 | Ur | What is a scheme? | Marco D'Addezio (FU) | |
| 2018/06/22 | | No talk | | |
| 2018/06/29 | Ur | What are semialgebraic sets in context? | Josué Tonelli-Cueto (TU) | |
| 2018/07/06 | FU | What is a positional game? | Alp Müyesser (Carnegie Mellon) | |
| 2018/07/13 | Ot | What is a ranking algorithm? | Benjamin Gardiner (TU) | |
| 2018/07/20 | | No talk | | |
Winter Semester
| Date | Vn. | Title of talk | Speaker | |
| 2017/10/20 | | No talk | | |
| 2017/10/27 | Ur | What is a random graph? | Jannes Münchmeyer (HU) | |
| 2017/11/03 | TU | What is algebraic statistics? | Carlos Améndola (TU) | |
| 2017/11/10 | Ur | What is a finite element method? | Monika Eisenmann (TU) | |
| 2017/11/17 | | No talk | | |
| 2017/11/24 | Ur | What is a spectrahedron? | Mario Kummer (MPI Leipzig) | |
| 2017/12/01 | | No talk | | |
| 2017/12/08 | TU | What are monomial tropical cones for multicriteria optimization? | Georg Loho (TU) | |
| 2017/12/15 | Ur | What is the Teichmüller space of a surface? | Lara Skuppin (TU) | |
| 2017/12/22 | | No talk | | |
| 2018/01/12 | TU | What are large deviations? | András Tóbiás (TU) | |
| 2018/01/19 | Ur | What are Maxwell's equations? | Marek Gluza (FU) | |
| 2018/01/26 | | No talk | | |
| 2018/02/02 | Ur | What is a homotopy invariant? | Alexander Müller (FU) | |
| 2018/02/09 | | No talk | | |
| 2018/02/16 | Ur | What is an inverse problem? | Héctor Andrade Loarca (TU) | |
| 2018/02/20 | Ur | What are molecular dynamics? | Mohsen Sadeghi (FU) | |
2016/17
Summer Semester
| Date | Vn. | Title of talk | Speaker | |
| 2017/04/21 | Ur | What are Hamiltonian dynamics? | Alexander Fauck (HU) | |
| 2017/04/28 | TU | What are triangulated spheres and Pachner moves? | Giulia Codenotti (FU) | |
| 2017/05/05 | Ur | What is variational inference? | Patrick Jähnichen (HU) | |
| 2017/05/12 | | No talk | | |
| 2017/05/19 | | No talk | | |
| 2017/05/26 | | No talk | | |
| 2017/06/02 | Ur | What is Iwasawa theory? | Marcin Lara (FU) | |
| 2017/06/09 | | No talk | | |
| 2017/06/16 | | No talk | | |
| 2017/06/23 | | No talk | | |
| 2017/06/30 | Ur | What are $\mathsf{BPP}$, $\mathsf{RP}$ and the other probabilistic complexity classes? | Josué Tonelli Cueto (TU) | |
| 2017/07/07 | TU | What is a condition number? | Paul Breiding (TU) | |
| 2017/07/14 | Ur | What is Onsager's conjecture? | Robert Lasarzik (TU) | |
| 2017/07/21 | FU | What is Gröbner basis doing in Sudoku? | Irem Portakal (FU) | |
Winter Semester
| Date | Vn. | Title of talk | Speaker | |
| 2016/10/21 | Ur | What is mixed integer linear programming? | Stanley Schade (FU/ZIB) | |
| 2016/10/28 | | No talk | | |
| 2016/11/04 | Ur | What is a modular form? | Antareep Mandal (HU) | |
| 2016/11/11 | | No talk | | |
| 2016/11/18 | | No talk | | |
| 2016/11/25 | | No talk | | |
| 2016/12/02 | | No talk | | |
| 2016/12/09 | | No talk | | |
| 2016/12/16 | Ur | What is formal mathematics? | Martin Skrodzki (FU) | |
| 2017/01/13 | Ur | What is randomness good for? | Shagnik Das (FU) | |
| 2017/01/20 | | No talk | | |
| 2017/01/27 | Ur | What is the length of a potato? | Josué Tonelli Cueto (TU) | |
| 2017/02/03 | | No talk | | |
| 2017/02/10 | Ur | What is a (discontinuous) Galerkin finite element method? | Lasse Hinrichsen (FU) | |
| 2017/02/17 | | No talk | | |
| 2017/02/21 | Ur | What is linear programming? | Georg Loho (FU) | |
2015/16
Summer Semester
| Date | Vn. | Title of talk | Speaker | |
| 2016/04/22 | | No talk | | |
| 2016/04/29 | Ur | What is symplectic geometry? | Mara Ungureanu (HU) | |
| 2016/05/06 | | No talk | | |
| 2016/05/13 | Ur | What is a Chow ring? | Fei Ren (FU) | |
| 2016/05/20 | | No talk | | |
| 2016/05/27 | | No talk | | |
| 2016/06/03 | | No talk | | |
| 2016/06/10 | | No talk | | |
| 2016/06/17 | Ur | What is an eigenvector of a tensor? | Kathlén Kohn (TU) | |
| 2016/06/24 | | No talk | | |
| 2016/07/01 | | No talk | | |
| 2016/07/08 | Ot | What is a sphere packing? | Albert Haase (FU) | |
| 2016/07/15 | | No talk | | |
| 2016/07/22 | | No talk | | |
Winter Semester
| Date | Vn. | Title of talk | Speaker | |
| 2015/10/16 | Ur | What is representation theory? | Patrick Da Silva (HU) | |
| 2015/10/23 | | No talk | | |
| 2015/10/30 | Ur | What is a period? | Filippo Nuccio (Université St. Étienne) | |
| 2015/11/06 | | No talk | | |
| 2015/11/13 | TU | What is reciprocity? | Jan Hofmann (FU) | |
| 2015/11/20 | | No talk | | |
| 2015/11/27 | | No talk | | |
| 2015/12/04 | | No talk | | |
| 2015/12/11 | Ur | What is discrete Fourier analysis? | Christoph Spiegel (FU) | |
| 2015/12/18 | | No talk | | |
| 2016/01/08 | | No talk | | |
| 2016/01/15 | Ur | What is a $p$-adic number? | Claudius Heyer (HU) | |
| 2016/01/22 | | No talk | | |
| 2016/01/29 | Ur | What is a stochastic process? | Stefan Rüdrich (FU) | |
| 2016/02/05 | FU | What is an origami constructible number? | Josué Tonelli Cueto (HU) | |
| 2016/02/12 | Ur | What is the disjoint paths problem? | Miriam Schlöter (TU) | |
| 2016/02/16 | Ur | What is a rational function? | Irem Portakal (FU) | |
2014/15
Summer Semester
| Date | Vn. | Title of talk | Speaker | |
| 2015/04/17 | | No talk | | |
| 2015/04/24 | Ur | What is the complexity of matrix multiplication? | Pierre Lairez (TU) | |
| 2015/05/01 | | No talk | | |
| 2015/05/08 | TU | What is a supercritical percolation cluster? | Nguyen Tuan Anh (TU) | |
| 2015/05/15 | | No talk | | |
| 2015/05/22 | | No talk | | |
| 2015/05/29 | | No talk | | |
| 2015/06/05 | FU | What is a transfer operator? | Adam Nielsen (ZIB) | |
| 2015/06/12 | Ur | What is group homology? | Peter Patzt (FU) | |
| 2015/06/19 | HU | What is the heat kernel? | Asilya Suleymanova (HU) | |
| 2015/06/26 | | No talk | | |
| 2015/07/03 | | No talk | | |
| 2015/07/10 | Ur | What is Ramsey theory? | Manh Tuan Tran (FU) | |
| 2015/07/17 | | No talk | | |
Winter Semester
| Date | Vn. | Title of talk | Speaker | |
| 2014/10/17 | | No talk | | |
| 2014/10/24 | HU | What is a syzygy? | Daniele Agostini (HU) | |
| 2014/10/31 | Ur | What is an Ehrhart polynomial? | Hannes Pollehn (TU) | |
| 2014/11/07 | | No talk | | |
| 2014/11/14 | Ur | What is a $\operatorname{CAT}(0)$ space? | Sebastian Meinert (FU) | |
| 2014/11/21 | | No talk | | |
| 2014/11/28 | Ur | What is a (complex) hyperplane arrangement? | Arnau Padrol Sureda (FU) | |
| 2014/12/05 | FU | What is the ham sandwich theorem? | Florian Frick (TU) | |
| 2014/12/12 | Ur | What is a Hamiltonian system? | Jonathan Youett (FU) | |
| 2014/12/19 | | No talk | | |
| 2015/01/09 | Ur | What is sparse and redundant representation modeling for image processing? | Wang-Q Lim (TU) | |
| 2015/01/16 | TU | What is a van Kampen obstruction cocycle? | Isaac Mabillard (IST Austria) | |
| 2015/01/23 | FU | What is the probabilistic method? | Shagnik Das (FU) | |
| 2015/01/30 | | No talk | | |
| 2015/02/06 | Ur | What is (algebraic) complexity theory? | Jesko Hüttenhain (TU) | |
| 2015/02/13 | | No talk | | |
| 2015/02/17 | Ur | What is a scale in motion? | Thomas von Larcher (FU) | |
2013/14
Summer Semester
| Date | Vn. | Title of talk | Speaker | |
| 2014/04/18 | | No talk | | |
| 2014/04/25 | Ur | What is the Navier-Stokes equation? | Ariane Papke (FU) | |
| 2014/05/02 | | No talk | | |
| 2014/05/09 | Ur | What is a random graph? | Adam Streck (FU) | |
| 2014/05/16 | | No talk | | |
| 2014/05/23 | HU | What is a partial zeta function? | Miguel Grados (HU) | |
| 2014/05/30 | | No talk | | |
| 2014/06/06 | Ur | What is an isohedral tiling? | Michael Joos (TU) | |
| 2014/06/13 | | No talk | | |
| 2014/06/20 | Ur | What are the moduli spaces of curves? | Giulia Battiston (FU) | |
| 2014/06/27 | HU | What is the Atiyah-Singer index theorem? | Lucas Braune (IMPA Rio de Janeiro) | |
| 2014/07/04 | Ur | What is a Riemannian manifold? | Lara Skuppin (TU) | |
| 2014/07/11 | FU | What is time-of-death modeling? | Jonas Krone (TU)
Zoi Tokoutsi (FU) | |
| 2014/07/18 | Ur | What is a gyroid? | Ulrich Reitebuch (FU) | |
Winter Semester
| Date | Vn. | Title of talk | Speaker | |
| 2013/10/18 | Ur | What is combinatorial rigidity? | Louis Theran (FU) | |
| 2013/10/25 | HU | What is a hyperreal number? | Uğur Doğan (HU) | |
| 2013/11/01 | Ur | What is a graph limit? | Codrut Grosu (FU) | |
| 2013/11/08 | TU | What is the relation between Laplace transform and Z-transform? | Deniz Genlik (TU) | |
| 2013/11/15 | Ur | What is the conformal geometry of surfaces? | Wayne Lam (TU) | |
| 2013/11/22 | FU | What are mean curvature flow and its self-shrinkers? | Keita Kunikawa (Tohoku Univ) | |
| 2013/11/29 | TU | What is a Wasserstein distance? | Matthias Liero (WIAS) | |
| 2013/12/06 | HU | What is a Grassmannian? | Eva Martinez (HU) | |
| 2013/12/13 | Ur | What are the Burger's equation and heat equations? | Juan Camilo Orduz (HU) | |
| 2013/12/20 | | No talk | | |
| 2014/01/10 | Ot | What is the representation theory of finite groups? | Peter Patzt (FU) | |
| 2014/01/17 | Ur | What is a 4D object? | Faniry Razafindrazaka (FU) | |
| 2014/01/24 | FU | What is the spacetime constraints paradigm? | Christoph von Tycowicz (FU) | |
| 2014/01/31 | Ur | What is a Carleson operator? | Yizhi Sun (TU) | |
| 2014/02/07 | | No talk | | |
| 2014/02/14 | | No talk | | |
| 2014/02/18 | Ur | What is the prime number theorem? | Ananyo Dan (HU) | |
2012/13
Summer Semester
| Date | Vn. | Title of talk | Speaker | |
| 2013/04/19 | Ur | What is a higher order tensor decomposition? | Max Pfeffer (TU) | |
| 2013/04/26 | HU | What is an $L$-function? | Miguel Grados (HU) | |
| 2013/05/03 | Ur | What is the Nash embedding theorem? | Ariane Beier (U Potsdam) | |
| 2013/05/10 | | No talk | | |
| 2013/05/17 | | No talk | | |
| 2013/05/24 | | No talk | | |
| 2013/05/31 | | No talk | | |
| 2013/06/07 | FU | What is a subgradient? | Elias Pipping (FU) | |
| 2013/06/14 | | No talk | | |
| 2013/06/21 | Ur | What are abstract functions and weak convergence? | Christian Kreusler (TU) | |
| 2013/06/28 | TU | What is matrix completion? | Franz Király (TU) | |
| 2013/07/05 | Ur | What is a self-avoiding random walk? | Giovanni Conforti (HU) | |
| 2013/07/12 | Ur | What is a variational inequality? | Carsten Gräser (FU) | |
| 2013/07/19 | | No talk | | |
Winter Semester
| Date | Vn. | Title of talk | Speaker | |
| 2012/10/19 | Ur | What is a smoke ring? | Felix Jakob Knöppel (TU) | |
| 2012/10/26 | TU | What is persistent homology? | Mijail Guillemard (TU) | |
| 2012/11/02 | Ur | What is a quaternion algebra? | Christian Wald (HU) | |
| 2012/11/09 | HU | What is a Bruhat-Tits tree? | Inder Kaur (HU) | |
| 2012/11/16 | | No talk | | |
| 2012/11/23 | FU | What is a regular map? | Faniry Razafindrazaka (FU) | |
| 2012/11/30 | Ur | What is a spacetime singularity? | Phillipo Lappicy (FU) | |
| 2012/12/07 | HU | What is a Hodge locus? | Ananyo Dan (HU) | |
| 2012/12/14 | Ur | What is $SU(2)$ and why does it double-cover $SO(3)$? | Florian Frick (TU) | |
| 2012/12/21 | | No talk | | |
| 2013/01/11 | | No talk | | |
| 2013/01/18 | TU | What is a quasiconformal mapping? | Isabella Thiesen (TU) | |
| 2013/01/25 | Ur | What is a $j$-invariant? | Emre Sertöz (HU) | |
| 2013/02/01 | FU | What is a monotonicity formula? | Ahmad Afuni (FU) | |
| 2013/02/08 | Ur | What is a rational tangle? | Silvia de Toffoli (TU) | |
| 2013/02/15 | TU | What is a Palindromic Eigenvalue Problem? | Christian Schröder (TU) | |
| 2013/02/19 | Ur | What is a positional game? | Dennis Clemens (FU) | |
2011/12
Summer Semester
| Date | Vn. | Title of talk | Speaker | |
| 2012/04/13 | TU | What is a spectral method? | Maciek Korzec (TU) | |
| 2012/04/20 | Ur | What is a dissipative weak solution? | Romain Nguyen (FU) | |
| 2012/04/27 | HU | What is a path-following method? | Jennifer Rasch (HU) | |
| 2012/05/04 | FU | What is software development? | Kristian Rother | |
| 2012/05/11 | | No talk | | |
| 2012/05/18 | TU | What is a differential inclusion? | Shahrad Jamshidi (FU) | |
| 2012/05/25 | FU | What is a configuration space? | Dror Atariah (FU) | |
| 2012/06/01 | HU | What is a problem in mathematical finance? | Julio Backhoff (HU) | |
| 2012/06/08 | Ur | What is a group action? | Mikola Lysenko (UW Madison) | |
| 2012/06/15 | TU | What is a Dirac operator? | Juan Orduz (HU) | |
| 2012/06/22 | Ur | What is the Fabricius-Bjerre theorem? | Felix Günther (TU) | |
| 2012/06/29 | Ur | What is a group representation? | Giovanni de Gaetano (HU) | |
| 2012/07/06 | Ur | What is Brownian motion? | Adrián Gonzalez Casanova (TU) | |
| 2012/07/13 | HU | What are $\operatorname{Ext}$ and its applications? | Hannah Enders (HU) | |
Winter Semester
| Date | Vn. | Title of talk | Speaker | |
| 2011/10/21 | Ur | What is diffusion? | Maciek Korzec (TU) | |
| 2011/10/28 | Ur | What is tropical geometry? | Cesar Ceballos (FU) | |
| 2011/11/04 | HU | What is a zeta function? | David Ouwehand (HU) | |
| 2011/11/11 | | No talk | | |
| 2011/11/18 | FU | What is a Gröbner basis in a polynomial ring? | Andre Mialebama (FU) | |
| 2011/11/25 | TU | What is the Lagrangian relaxation of an integer program? | Jonad Pulaj (ZIB) | |
| 2011/12/02 | Ur | What is a lattice in a Lie group good for? | Barbara Jung (HU) | |
| 2011/12/09 | Ur | What are propagating interfaces and level set methods? | Antoine Laurain (HU) | |
| 2011/12/16 | | No talk | | |
| 2012/01/06 | Ur | What is a shearlet? | Wang-Q Lim (TU) | |
| 2012/01/13 | | No talk | | |
| 2012/01/20 | Ur | What is an independent transversal? | Lothar Narins (FU) | |
| 2012/01/27 | TU | What is the connection
between the Kantian intuition of mathematical objects and diagrams? | Özge Ekin (FU) | |
| 2012/02/03 | Ur | What is risk? | Samuel Drapeau (HU) | |
| 2012/02/10 | HU | What is the a Feynman integral? | Christian Bogner (HU) | |
| 2012/02/22 | Ur | What is the fundamental group and covering spaces? | Fabian Lenhardt (FU) | |
2010/11
Summer Semester
| Date | Vn. | Title of talk | Speaker | |
| 2011/04/15 | Ur | What is a modular form? | Anilatmaja Aryasomayajula (HU) | |
| 2011/04/22 | | No talk | | |
| 2011/04/29 | Ur | What is the Kuhn-Tucker theorem? | Thomas Lehmann (ZIB) | |
| 2011/05/06 | TU | What is an infinitesimal? | Thomas El Khatib (TU) | |
| 2011/05/13 | Ur | What is a graph? | Daniel Heldt (TU) | |
| 2011/05/20 | | No talk | | |
| 2011/05/27 | Ur | What is the direct method in the calculus of variations? | Beatrice Bugert (WIAS) | |
| 2011/06/03 | | No talk | | |
| 2011/06/10 | Ur | What is a moduli space? | Fabian Müller (HU) | |
| 2011/06/17 | FU | What is a sheaf? | Nikolai Beck (FU) | |
| 2011/06/24 | Ur | What is linear programming? | Ambros Gleixner (ZIB) | |
| 2011/07/01 | | No talk | | |
| 2011/07/08 | Ur | What is a Green's function? | Marcel Ortgiese (TU) | |
| 2011/07/15 | HU | What is a matroid? | Markus Hihn (HU) | |
Winter Semester
| Date | Vn. | Title of talk | Speaker | |
| 2010/10/22 | Ur | What is a Catalan number? | Jean-Philippe Labbé (TU) | |
| 2010/10/29 | TU | What is Hilbert's 17th problem? | Moritz Schmitt (TU) | |
| 2010/11/05 | Ur | What is a stable marriage? | Ágnes Cseh (TU) | |
| 2010/11/12 | HU | What is a selflocator? | Heinrich Mellmann (HU) | |
| 2010/11/19 | FU | What is a multifunction? | Klebert Kentia (HU) | |
| 2010/11/26 | Ur | What is the origin of elliptic functions? | Barbara Jung (HU) | |
| 2010/12/03 | Ur | What is the probabilistic method? | Anita Liebenau (FU) | |
| 2010/12/10 | Ur | What is cognitive neuroscience? | Roland Friedrich (HU) | |
| 2010/12/17 | | No talk | | |
| 2011/01/07 | FU | What is a derived category? | Andreas Hochenegger (FU) | |
| 2011/01/14 | Ur | What is a Diophantine equation? | Stefan Keil (HU) | |
| 2011/01/21 | TU | What is a random walk on a network? | Natasa Djurdjevac (FU) | |
| 2011/01/28 | Ur | What is math blogging? | Felix Breuer (FU) | |
| 2011/02/04 | HU | What is the exit problem? | Han Lie (HU) | |
| 2011/02/11 | Ur | What is $\mathsf{P}$ vs $\mathsf{NP}$? | Jannik Matuschke (TU) | |
| 2011/02/18 | TU | What is a weak derivative? | Stefan W. von Deylen (FU) | |
| 2011/02/22 | Ur | What is a matroid? | Matthias Lenz (TU) | |
2009/10
Summer Semester
| Date | Vn. | Title of talk | Speaker | |
| 2010/04/16 | FU | What is Hilbert's 16th problem? | Eyal Ron (FU) | |
| 2010/04/23 | Ur | What is a theta body? | Annie Raymond (TU) | |
| 2010/04/30 | TU | What is a Killing vector field? | Mimi Tsuruga (FU) | |
| 2010/05/07 | Ur | What is a Fourier series? | Jerry Gagelman (TU) | |
| 2010/05/14 | HU | What is the big deal with math and music? | Aaron Greicius (HU) | |
| 2010/05/21 | Ur | What is a zeta function? | Nicholas Schmidt (HU) | |
| 2010/05/28 | | No talk | | |
| 2010/06/04 | Ur | What is a linear system of plane curves? | Angela Ortega (HU) | |
| 2010/06/11 | HU | What is the classifying space of a category? | Stephan Müller (HU) | |
| 2010/06/18 | Ur | What is Pólya theory? | Emerson Leon (TU) | |
| 2010/06/25 | FU | What is a hybrid automata? | Shahrad Jamshidi (FU) | |
| 2010/07/02 | TU | What are large deviations? | Hanna Döring (TU) | |
| 2010/07/09 | FU | What is phylogenetic algebraic geometry? | Kaie Kubjas (FU) | |
| 2010/07/16 | | No talk | | |
Winter Semester
| Date | Vn. | Title of talk | Speaker | |
| 2009/10/16 | FU | What is a Gröbner basis? | René Birkner (FU) | |
| 2009/10/23 | Ur | What is algorithmic differentiation? | Hernan Leovey (HU) | |
| 2009/10/30 | TU | What is a Facet Massacre? | Bruno Benedetti (TU) | |
| 2009/11/06 | Ur | What is a self-avoiding random walk? | Noemi Kurt (TU) | |
| 2009/11/13 | FU | What is Morse theory? | Carsten Schultz (TU) | |
| 2009/11/20 | FU | What is a Moduli space? | Nicola Tarasca (HU) | |
| 2009/11/27 | TU | What is a quantum group? | Inna Lukyanenko (TU) | |
| 2009/12/04 | Ur | What is a Seifert surface? | Silvia de Toffoli (TU) | |
| 2009/12/11 | | No talk | | |
| 2009/12/18 | Ur | What is a rough path? | Joscha Diehl (HU) | |
| 2010/01/08 | Ur | What is a geodesic? | Tobias Pfeiffer (FU)
Dror Atariah (FU) | |
| 2010/01/15 | FU | What is a semimartingale? | Plamen Turkedjiev (HU) | |
| 2010/01/22 | Ur | What is a language game? | Hartwig Mayer (HU) | |
| 2010/01/29 | TU | What is a multigrid? | Oliver Sander (FU) | |
| 2010/02/05 | Ur | What is a graph associahedron? | Carsten Lange (FU) | |
| 2010/02/12 | | No talk | | |
2008/09
Summer Semester
| Date | Vn. | Title of talk | Speaker | |
| 2009/04/17 | | No talk | | |
| 2009/04/24 | Ur | What is the adaptive finite element method? | Joscha Gedicke (HU) | |
| 2009/05/01 | | No talk | | |
| 2009/05/08 | Ur | What is the Dedekind zeta function? | Anna Posingies (HU) | |
| 2009/05/15 | TU | What is entropy? | Yvon Vignaud (TU) | |
| 2009/05/22 | FU | What is a Goppa code? | Nathan Ilten (FU) | |
| 2009/05/29 | | No talk | | |
| 2009/06/05 | FU | What is a flag vector? | Axel Werner (ZIB) | |
| 2009/06/12 | | No talk | | |
| 2009/06/19 | Ur | What is the field with one element? | Laura Hinsch (FU) | |
| 2009/06/26 | FU | What is the square root of a graph? | Robin Scholz (U Potsdam) | |
| 2009/07/03 | FU | What is topological dynamics? | Peter Krautzberger (FU) | |
| 2009/07/10 | | No talk | | |
| 2009/07/17 | | No talk | | |
Winter Semester
| Date | Vn. | Title of talk | Speaker | |
| 2008/10/17 | | No talk | | |
| 2008/10/24 | FU | What is the random graph? | Stefanie Frick (FU) | |
| 2008/10/31 | Ur | What is homotopical algebra? | Anton Dochtermann (TU) | |
| 2008/11/07 | FU | What is deformation? | Nathan Ilten (FU) | |
| 2008/11/14 | Ur | What is an elliptic curve?
Basic notions in algebraic and arithmetic geometry | Anna Pippich (HU)
Fritz Hörmann (HU) |
|
| 2008/11/21 | FU | What are loops and the fundamental group? | Dror Atariah (FU) | |
| 2008/11/28 | Ur | What is geometric knot theory? | Barbara Jablonska (TU) | |
| 2008/12/05 | FU | What is Hindman's theorem? | Peter Krautzberger (FU) | |
| 2008/12/12 | Ur | What is spectral expansion? | Anna Pippich (HU) | |
| 2008/12/19 | FU | What is similarity of shapes? | Daria Schymura (FU) | |
| 2009/01/09 | Ur | What is the $\mathsf{P}$ vs $\mathsf{NP}$ problem? | Matthias Lenz (TU) | |
| 2009/01/16 | FU | What is an averaging principle? | Carsten Hartmann (FU) | |
| 2009/01/23 | Ur | What is the Birch and Swinnerton-Dyer conjecture? | Fritz Hörmann (HU) | |
| 2009/01/30 | FU | What is a Fraisse construction? | Artem Chernikov (HU) | |
| 2009/02/06 | Ur | What is Helly's theorem? | Mareike Massow (TU) | |
| 2009/02/13 | FU | What is Brownian motion? | Plamen Turkedjiev (HU) | |
2007/08
Summer Semester
The talks until 2008/07/03 were held in German.
| Date | Vn. | Title of talk | Speaker | |
| 2008/05/22 | FU | Was ist eigentlich ein Ultrafilter (und was kann man damit anstellen?) | Peter Krautzberger (FU) | |
| 2008/05/29 | FU | Was ist eigentlich der Ricci-Fluss? | Tobias Marxen (FU) | |
| 2008/06/05 | FU | Was ist eigentlich die Schälung eines Polytops? | Frederik von Heymann (FU) | |
| 2008/06/12 | FU | Was ist eigentlich eine Garbe? | Nathan Ilten (FU) | |
| 2008/06/19 | FU | Was ist eigentlich eine sinnvolle Verallgemeinerung des Zwischenwertsatz? | Felix Breuer (FU) | |
| 2008/06/26 | FU | Was ist eigentlich eine sinnvolle Erweiterung der Halbgruppe der natürlichen Zahlen? | Peter Krautzberger (FU) | |
| 2008/07/03 | FU | Was ist eigentlich das Kontinuum und was ist sein Problem? | Gido Scharfenberger-Fabian (FU) | |
| 2008/07/10 | | No talk | | |
| 2008/07/17 | FU | What is the chromatic number of the plane? | Michael Payne (FU) | |