Videos

Webs and Buildings in Type A

Presenter
December 9, 2025
Abstract
In this talk, we describe an embedding of Type A Webs, a diagrammatic monodical category, into a class of graph planar algebras. These graph planar algebras arise from affine type A buildings, a combinatorial structure developed by Tits in the 1970s. The relationship between finite projective geometries and affine buildings is key in establish the existence of an embedding functor in positive characteristic graph planar algebras.