58:49
publiée le 17 décembre 2025
Traversing regions of supersolvable hyperplane arrangements and their lattice quotients
De Torsten Mütze
Realization spaces of polytopes and oriented matroids
De Arnau Padrol
Apparaît dans la collection : Current trends in representation theory, cluster algebras and geometry / Théorie des représentations, algèbres amassées et géométrie
This is the second lecture on a mini-course on polytopal realizations of combinatorial structures. We discuss realization spaces of polytopes and oriented matroids and Mnëv's universality theorem, showing that it is hard to decide if a given poset is the face lattice of a convex polytope.
