Time and place: 4:15-6:30 pm, 3/24 at Science Center (1 Oxford St), room 507.
Speaker: Keyou Zeng
Title: Line operators in holomorphic QFT
Abstract: We will discuss the recent work (arxiv:2508.11749), which defines the so called dg shifted Yangian. I will discuss their origin from the study of 3d holomorphic topological field theories, a variant of 3d TQFT. A dg shifted Yangian is supposed to control the fusion of line defect in the corresponding 3d HT theories. I will illustrate these discussions in examples.