Combinatorial Coworkspace 2022
— a session in algebraic and geometric combinatorics —
Haus Bergkranz · Kleinwalsertal · Austria · March 19-27
A “coworkspace” is a place where people come together to work together or simply side-by-side.
The goal of our “combinatorial coworkspace” is to give a group of motivated young and promising as well as established mathematicians such a place to explore new directions, applications, cooperations, and alliances within combinatorics and beyond.
A context is provided by a suitable number of tutorials and lectures and the beautiful location encourages to take mathematical thoughts outdoors.
Participation is by invitation only.
Schedule
The following schedule is not carved in stone — if you would like to contribute in any way, for example by
proposing a talk or a
topic for one of the special sessions, please contact us by email or on-side in person.
We aim for a cowork space to which all participants are encouraged to actively participate!
Presentations
Tutorial (~240min spread over multiple slots)
General introduction to a topic, potentially including exercises.
- Mario Kummer & Liam Solus Realrooted, hyperbolic, and Lorentzian polynomials ( exercises )
- Lukas Kühne & Bernd Sturmfels Geometric Combinatorics from Statistics and Physics ( tutorial / exercises )
Survey (90min)
Overview of a research topic and its connections to geometric, topological and algebraic combinatorics.
- Ulrich Bauer Gromov hyperbolicity, geodesic defect, and apparent pairs in Vietoris-Rips filtrations ( slides )
- Alex Fink Matroid and polymatroid valuations
- Bruno Benedetti Some old graph theory, with a logic perspective, and simplicial complexes ( slides )
Long presentation: (60 min talk)
Research talk, keeping in mind the diverse audience.
Short presentation: (30 min talk)
Short research talk about a current research topic.
Evening presentation: (30 min or more talk)
Research talk of 30 minutes or more, keeping in mind the diverse audience and the time.
Evening activities:
WhoIsWho, EveningTalks, OpenMic
Confirmed participants
- Florian Aigner (Alternating sign matrices and plane partitions, 30 min talk)
- Ulrich Bauer
- Bruno Benedetti
- Aenne Benjes
- Marie Brandenburg (Intersection bodies of polytopes)
- Justus Bruckamp
- Benjamin Brück (Cohomology of arithmetic groups via Tits buildings, 30 min talk)
- Xiangying Chen
- Clement Cheneviere
- Giulia Codenotti (Reduced polytopes and flatness constants, 60 min talk)
- Joseph Doolittle
- Galen Dorpalen-Barry (Narayana numbers from the geometry of Shi arrangements, 30 min or more evening talk)
- Elias Drohla
- Tarek Emmrich
- Ansgar Freyer (Slicing problems in the geometry of numbers, 30 min talk)
- Alex Fink
- Christian Haase
- Marvin Hahn (Intersecting psi-classes on tropical Hassett spaces, 30 min talk)
- Martina Juhnke-Kubitzke
- Thomas Kahle
- Lukas Kühne (Cosmological polytopes, 30 min talk)
- Mario Kummer
- Georg Loho (Discrete convexity and tropical geometry, 30 min talk)
- Josh Maglione (Igusa zeta functions, hyperplane arrangements, and matroids, 60 min talk)
- Zuzanna Patakova (Radon and fractional Helly theorems, 60 min talk)
- Eva Philippe
- Germain Poullot
- Sophie Rehberg (Rational Ehrhart theory, 30 min talk)
- Cordian Riener (#P hardness of Immanents, 30 min or more evening talk)
- Raman Sanyal
- Matthias Schymura (The geometry of the lonely runner conjecture, 30 min or more evening talk)
- Tim Seynnaeve (Quasimorphisms into Hamming metrics, 30 min talk)
- Liam Solus
- Christian Stump
- Bernd Sturmfels
- Tan Nhat Tran (Hyperplane arrangements and Ehrhart theory, 30 min talk)
- Lorenzo Venturello (On the gamma-vector of symmetric edge polytopes, 30 min or more evening talk)
- Julian Vill
- Christopher Voll
- Volkmar Welker (On matroid type complexes with orthogonality relations, 60 min talk)
- Martin Winter (Geometric Expansion Properties of Polytope Skeleta, 30 min talk)