You are cordially invited to the Analysis Seminar organized by the Department of Mathematics.<\/p>\n
Speaker: Lukas K\u00fchne (Bielefeld University)
\n“Cosmological Polytopes”<\/p>\n
Abstract: A cosmological polytope is a lattice polytope introduced by Arkani-Hamed, Benincasa, and Postnikov in their study of the wave function of the universe in a class of cosmological models. More concretely, they construct a cosmological polytope for any Feynman diagram, i.e. an undirected graph.
\nIn this talk, I will report on a combinatorial study of these polytopes. This includes a complete description of their faces, the identification of minimal faces that are not simplices, and a computation of the number of faces in specific instances. If time permits I will also talk about a recent result of Juhnke-Kubitzke, Solus, and Venturello pertaining to unimodular triangulations of these polytopes.
\nBased on joint work with Leonid Monin.<\/p>\n
Date: Thursday, April 13, 2023
\nTime: 17:45-18:45, GMT+3.
\nPlace: Zoom<\/p>\n
This is an online seminar. To request the event link, please send a message to goncha@fen.bilkent.edu.tr<\/p>\n","protected":false},"excerpt":{"rendered":"
You are cordially invited to the Analysis Seminar organized by the Department of Mathematics. Speaker: Lukas K\u00fchne (Bielefeld University) “Cosmological Polytopes” Abstract: A cosmological polytope is a lattice polytope introduced by Arkani-Hamed, Benincasa, and Postnikov in their study of the wave function of the universe in a class of cosmological [\u2026] <\/p>\n