Combinatorics & algebra seminar-Cohomological Hall algebras of semi nilpotent varieties
Tuesday, April 14, 2026
4:00 pm - 5:00 pm
Title: Cohomological Hall algebras of semi nilpotent varieties
Speaker: Jie Ren, Howard
Date and time: Tuesday, April 14, 4–5 pm
Place: Rome 206
Abstract: The cohomological Hall algebras (COHA) are algebras defined on the moduli of quiver algebra modules. They can be used to realize enveloping algebras of some Lie algebras. I will talk about COHA of certain quiver algebras satisfying some nilpotency conditions. This is a joint work with Yiqiang Li.
Speaker: Jie Ren, Howard
Date and time: Tuesday, April 14, 4–5 pm
Place: Rome 206
Abstract: The cohomological Hall algebras (COHA) are algebras defined on the moduli of quiver algebra modules. They can be used to realize enveloping algebras of some Lie algebras. I will talk about COHA of certain quiver algebras satisfying some nilpotency conditions. This is a joint work with Yiqiang Li.