| Workshop: Positive Geometry Beyond PhysicsPositive geometry is an emerging area of applied mathematics with roots in complex and real algebraic geometry and algebraic combinatorics. Its concepts and methods are largely motivated by questions arising in theoretical physics, particularly particle physics and cosmology. At the same time, there is growing evidence that positive geometry has significant potential for applications beyond physics.
This three-day workshop will explore connections between positive geometry and applied real algebraic geometry, with a particular focus on semidefinite programming, the geometry of spectrahedra, and algebraic statistics. One of the main goals of the workshop is to encourage the exchange of ideas and techniques between these areas and to identify new directions for collaboration.
The program will include introductory lectures on positive geometry, providing accessible entry points for participants from related fields. It will also feature research talks by experts in positive geometry, applied real algebraic geometry, and algebraic statistics, as well as informal discussion sessions designed to foster interaction and exchange among participants.
Confirmed speakers:
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This activity is financially supported by the DFG Priority program SPP "Combinatorial Synergies" and the ERC Synergy Grant UNIVERSE+ www.positive-geometry.com, funded by the European Union (ERC, UNIVERSE PLUS, 101118787). Views and opinions expressed are however those of the author(s) only and do not necessarily reflect those of the European Union or the European Research Council Executive Agency. Neither the European Union nor the granting authority can be held responsible for them.
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| Conference: Ten Years Nonlinear Algebra- Date: 11.01.2027 - 12.01.2027
- Location: Max Planck Institute for Mathematics in the Sciences, Inselstrasse 22, Leipzig (Germany)
- Organized by: Felix Lotter, Magdaléna Mišinová, Julian Weigert, Nicolas Alexander Weiss
- More information: See the homepage of the Conference
- Contact: Saskia Gutzschebauch
The year 2027 will mark the ten-year anniversary of the Nonlinear Algebra group at the MPI MiS in Leipzig. This two-day event will celebrate this occasion with many exciting talks reflecting on the wide spectrum of topics studied in the group during the past ten years.
The event will also provide a dedicated opportunity ("scientific speeddating") for the current PhD students (and younger) to get in touch with the senior members of the Nonlinear Algebra community. |
| The 8th Graduate Student Meeting in Applied Algebra and Combinatorics (GSMAAC)- Date: 27.01.2027 - 29.01.2027
- Location: Max Planck Institute for Mathematics in the Sciences, Inselstrasse 22, Leipzig (Germany)
- Organized by: Veronica Calvo Cortes, Angelo El Saliby, Francesco Nowell, Niharika Paul
- More information: See the homepage of the Meeting
- Contact: Saskia Gutzschebauch
The meeting will feature two mini-courses: one on algebraic statistics and one on combinatorics in mathematical physics. We will also have contributed talks and a poster session by participating graduate students, providing an opportunity for students to present their research and engage with peers working in related areas.
Main Speakers:
Participants may apply to contribute an oral and/or poster presentation. There is limited funding available for poster presenters and contributed talks. The application deadline for funding and contributions is September 27, 2026. Acceptance notifications are sent out shortly after.
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Community agreement
- Our goal is to create a fun and supportive environment, where all participants feel welcome, safe, and included, regardless of mathematical background, gender identity and expression, nationality, ethnicity, race, religion, age, disability, or any other factor.
- We strongly believe that all participants have something valuable to contribute to the meeting, regardless of background or level of experience, and encourage everyone to ask questions and share ideas throughout all parts of the meeting. In particular, there are no questions that are “too basic”, and it’s perfectly natural to make mistakes. We also encourage everyone to be open to other people’s ideas, and make sure that everyone is heard and included in group discussions.
- There will be space on the name tags where everyone can indicate their personal gender pronouns if they want to, and it's important that this is respected. If you are unfamiliar with the practice of sharing and using pronouns, here is a useful guide.
- If you witness harassment or discriminatory behaviour, please consider intervening. We need the whole community to work together to make this event the welcoming and rewarding experience for all that we strive to achieve. If you do not feel comfortable intervening yourself, please seek out an organizer.
- A more detailed code of conduct may be found on the GSMAAC website.
Acknowledgement:
This agreement is based on the community agreements of FPSAC, Encuentro Colombiano de Combinatoria and the 2021 Minicourse on Convex Geometry given at the Max Planck Institute for Mathematics in the Sciences.
This event is supported by the DFG Priority program SPP "Combinatorial Synergies" and The Combinatorics Consortium.
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| Summer school: Intersection Theory in ActionThe degrees of algebraic varieties and finite maps arise naturally in many applications. For example, they govern the algebraic complexity of optimization problems (e.g. maximum likelihood and Euclidean distance degrees). Intersection theory provides powerful tools for computing these degrees.
The 4-day summer school covers such tools. We will learn about Chow rings of toric varieties and Grassmannians, and about the Giambelli-Thom-Porteous formula. Theory and practice are bridged by computations, both symbolic and numerical. The school is followed by a 2-day workshop on recent advances at the interface of applied algebra and intersection theory.
Registration will follow soon.
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| Workshop: Algebraic Game TheoryThe workshop is envisioned to be centered on algebraic methods and closely related topics, including tropical geometry, convex geometry, linear algebra, and algorithmic approaches, as tools for advancing game-theoretic questions. The broader aspiration is that mathematicians not from game theory become familiar with the methods and open problems in the field, and that algebraic approaches gain wider understanding within the game theory community. For this reason, we are eager to ensure that the event also appeals to "classical" game theorists, and to foster dialogue between the algebraic and more traditional sides of the field and encourage cross-pollination of ideas.
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