Schur-Weyl duality for diagram algebras, and a problem involving Tanabe algebras
Schur-Weyl duality refers to the duality between the canonical actions of GLn(C) and Sk on tensor spaces of the form V⊗k, for a n-dimensional vector space V. If we consider the symmetric group Sn as a subgroup of GLn(C), this gives us an instance of Schur-Weyl duality, in this case between Sn and an algebra CAk(n) known as the partition algebra, which is isomorphic to EndSn(V⊗k) for 2k≤n. Partition algebras may be defined using an operation known as diagram multiplication, and this talk will cover how some of the basic properties of partition algebras may be derived using Schur-Weyl duality. The problem of applying some of the main concepts from the preprint https://arxiv.org/abs/1905.02071 to Tanabe algebras will also be considered.