Prof. Dr. Silvia Sabatini, Universität Köln, Vortrag: 12 and 24 in symplectic geometry and combinatorics
Donnerstag, 26.11.2015 16:30 im Raum M5
Symplectic geometry and combinatorics have a very strong connection, due to the
existence of Hamiltonian torus actions. Such actions come with a map,
called moment map, which ``transforms" a compact symplectic manifold into a
Hence many combinatorial properties of (some special types of) polytopes can be
studied using symplectic techniques.
In this talk I will focus on (smooth) reflexive polytopes of dimension 2 and 3,
and explain the so called "12" and "24" phenomenon using symplectic geometry.