Title: Positivity of the canonical basis under the comultiplication
Speaker: Zhaobing Fan（Harbin Engineering University）
Time: 9.19 (Friday), 16:00-17:00
Venue: Gewu Building 315
Abstract ：We show the positivity of the canonical basis for a modified quantum affine sl_n and modified i-quantum groups under the comultiplication. This is a joint work with Yiqiang Li.
