News
The Workshop "Wachspress Geometry" was organized by Rainer Sinn and Martin Winter and took place September 24 - 25, 2024 at the University of Leipzig.
Its goal was to bring together researchers with a shared interest in Wachspress Geometry and to present this field to a broad mathematical audience. In a total of ten talks the various perspectives on this newly emerging field were presented, ranging from adjoint polynomials and Wachspress models, to Amplituhedra and geometric rigidity. The workshop was well-attended, with approximately 15 early-career and 10 senior participants. At least 4 research projects started at this event.
The kick-off meeting of the priority program took place from September 11 to 13, 2024 in Osnabrück. It was attended by 76 participants, around half of whom were PhD and Master's students.
The scientific program consisted of a scientific presentation on each of the nine core topics of the SPP. In addition, there was a mentoring session for prospective and current PhD students, as well as an event in the form of a World Cafe, which served to network the projects.
The next annual conference will take place in Hannover in September 2025, organized by Michael Cuntz.
The 36th International Conference on Formal Power Series and Algebraic Combinatorics took place at Ruhr University Bochum, Germany in July 22-26, 2024. Arguably the most important conference series in Algebraic Combinatorics featured invited talks by
-
Carolina Benedetti (Universidad de los Andes, Colombia)
-
Michael Joswig (Technische Universität Berlin & MPI MiS Leipzig, Germany)
-
Satoshi Murai (Waseda University, Japan)
-
Rosa Orellana (Dartmouth College, United States)
-
Nicholas Proudfoot (University of Oregon, United States)
-
Markus Reineke (Ruhr-Universität Bochum, Germany)
-
Lisa Sauermann (Massachusetts Institute of Technology, United States)
-
Kris Shaw (University of Oslo, Norway)
-
Josephine Yu (Georgia Institute of Technology, United States)
and as well 27 contributed talks and 87 posters chosen by the program committee among 205 submissions. The more than 300 participants enjoyed a full week of great events, excursions, cake, sunshine, and an icecream featured closing event.
The summer school "Algebraic Combinatorics" took place at the MPI Leipzig on July 15. - 17. 2024 as a satelite event of the FPSAC 2024. It features three main lecture series by
-
Chris Eur: Log-concave rainbows and where to find them
-
Greta Panova: Computational Complexity in Algebraic Combinatorics
-
Vic Reiner: The Koszul Property in Algebraic Combinatorics
Each lecture series was accompanied with exercise sessions for the more than 100 participants from Germany, Europe, and abroad.
The lecture series held by Professor Uli Walther (Purdue University, USA) took place at Ruhr-University Bochum within the DFG Priority Programme 2458 "Synergies in Combinatorics" in June 2024. The lecture series was attended by a dozen PhD students and Postdocs.
The topics covered consisted of the following:
-
Matroids, matroidal polynomials, examples of these, including Kirchhoff polynomials, configuration polynomials, multivariable Tutte polynomials, matroid support polynomials.
-
Feynman diagrams and Feynman integrands (which are also matroidal). A discussion on torus actions on these hypersurfaces. The singular locus of certain matroidal polynomials - for configuration polynomials when the matroid is sufficiently connected, discuss irreducibility, size of singular locus, comparison between Jacobian ideal and a certain corank 2 determinantal ideal, Cohen-Macaulayness of these. The special case of the free resolution of the singular locus of the Kirchhoff polynomial of a complete graph.
-
For matroidal polynomials in general, it was explained that they have rational singularities, and in the homogeneous case that they are F-regular.
The DFG sent out the decision letters for (almost) all proposals on April 18-19. We expect the job openings to be published under Job openings soon, and also that (again almost) all positions to be filled before the first Priority Program Annual Conference in September in Osnabrück.
The 5th Graduate Student Meeting in Applied Algebra and Combinatorics was held at Freie Universität in Berlin, April 10-12 2024. The meeting had 93 participants. The majority of the attendees were Masters and PhDs, with a few PostDocs. The scientific program consisted of 10 contributed talks, 2 software demonstrations, minicourses presented by Georg Loho and irem Portakal, and a poster session with 35 presenters.
The review panel has met for two days on February 5--6 via zoom. On February 9, all proposal PIs have been informed by the program committee about the panel's funding recommendations. Starting in April, the program will fund 26 projects with 35 PIs and 30 PhD and PostDoc positions.
The European Research Council (ERC) has awarded a 10 million Euro Synergy Grant to the project “UNIVERSE+: Positive Geometry in Particle Physics and Cosmology”.
