Vortrag von Dr. Tsviqa Lakrec
Datum: 06.11.23 Zeit: 13.15 - 14.15 Raum: Y27H25The (tree) amplituhedron was introduced in 2013 by Arkani-Hamed and Trnka in their study of N=4 SYM scattering amplitudes. A central conjecture in the field was to prove that the m=4 amplituhedron is triangulated by the images of certain positroid cells, called the BCFW cells. In this talk I will describe a resolution of this conjecture in a joint work with Chaim Even-Zohar and Ran Tessler. I will also discuss more recent generalization of this theorem to other triangulations and how to associate the images of positroid cells with a cluster algebra structure, a joint work with Even-Zohar, Tessler, Sherman-Bennett, Parisi and Williams.