Abstract

Using a recent extension of the Lusztig braid group automorphisms of a quantum affine algebra, I prove that at an oddl-th root of unity, thel-th power of every real root vector lies in the centre of the quantum affine algebra. The centre of a quantum affine algebra at a root of unity is infinite dimensional: nevertheless it is infinite dimensional over its centre.

Full Text
Published version (Free)

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call