My interests lie in algebraic geometry and combinatorics.
More specifically, I enjoy combinatorial problems arising in the theories of algebraic surfaces, tropical geometry and toric varieties.
Recently, I have been interested in positive geometries and connections to physics.
Starting November 2023, I am a fwo PhD fellow.
-October 2024: Tropical geometry: Moduli and Matroids at Goethe University in Frankfurt
-September 2024: Summer School on Tropical Linear Spaces at the University of Tübingen
-May 2024: Amplituhedra, Cluster Algebras, and Positive Geometry at Harvard University, gave a 20 minute talk on Vandermonde cells as positive geometry, see here for a recording.
-May 2024: Combinatorial Algebraic Geometry from Physics at MPI Leipzig
-February 2024: Positive Geometry in Particle Physics and Cosmology at MPI Leipzig
-Oct 2023: Chow Lectures at MPI Leipzig
-May 2023: Dutch-Belgian seminar in discrete mathematics at the Vrije Universiteit Brussel
-March 2023: Singular workshop at the Erdős center in Budapest and contributed a lightning talk (5 min) on positive geometries
-January 2023 - : Reading seminar on tensor decomposition
-December 2022: Nikolaus school on computational geometry at TU Kaiserslautern and contributed a lightning talk (15 min) on positive geometries
-November 2022 - :Reading seminar on polynomial systems
-October 2022: Masterclass on Algebraic statistics and related topics
How to stab a Polytope: Arxiv, appeared in " Le Matematiche".
November 2022 - March 2023: Reading seminar on polynomial systems.
October 2024 - February 2024: Group seminar in applied algebraic geometry
-December 2024: "Positive geometries and Vandermonde cells", at the reading seminar on applied algebraic geometry.
-October 2024: "How to stab a Polytope", at the reading seminar on applied algebraic geometry.
-June 2024: "The Cylindrical Algebraic decomposition algorithm", at the reading group Algorithms in algebraic geometry.
-April 2024: "Perverse sheaves", at the reading group on intersection cohomology and perverse sheaves.
-March 2024: "The dimension of a Variety", at the reading group Algorithms in algebraic geometry.
-February 2024: "Oriented Matroids, Chirotopes, and Positroids", at the reading seminar on Matroids and applications.
-April 2023: "Equations for secant varieties, Part II" at the reading seminar on tensor decomposition.
-March 2023: "Representation theory of spaces of tensors" at the reading seminar on tensor decomposition.
-January 2023: "Normal form methods" at the reading seminar on polynomial systems.
-November 2022: "Systems of polynomial equations" at the reading seminar on polynomial systems.
Master of Science - Mathematics. Universität Tübingen, 2021.
Bachelor of Science - Mathematics. Universität Tübingen, 2019.
KU Leuven:
SS23: TA for "Combinatorial Algebraic Geometry"
WS23 and WS24: Supervising exercise sessions for "Wiskundige methoden voor biomedische wetenschappen"
SS25: TA for "Number theory"
During my time in Tübingen I have supervised various exercise classes.
sebastian.seemann@kuleuven.be