Academics

Symplectic Aspects of Representation Theory of Hypertoric Varieties

Time:Wed., 14:00-15:00 Dec. 18, 2024

Venue:C548, Shuangqing Complex Building A

Organizer:Kenji Fukaya, Honghao Gao, Hang Yuan

Speaker:Siyang Liu

Tsinghua-BIMSA symplectic geometry seminar

Organizers:

Kenji Fukaya, Honghao Gao, Hang Yuan(BIMSA)


Speaker:

Siyang Liu

University of Southern California

Time:

Wed., 14:00-15:00

Dec. 18, 2024

Venue:

C548, Shuangqing Complex Building A

Title:

Symplectic Aspects of Representation Theory of Hypertoric Varieties

Abstract:

In this talk we will discuss a symplectic model for T-equivariant hypertoric category \mathscr{O} as constructed by Braden-Licata-Proudfoot-Webster, which is the Fukaya-Seidel category of complexified complement of hyperplane arrangements associated to the corresponding hypertoric variety. This would provide a categorification of K-theoretic stable envelopes for hypertoric varieties. This is partly based on the recent work collaborated with S. Lee, Y. Li, and C. Y. Mak and the work in preparation with S. Ganatra, W. Li, and P. Zhou.

DATEDecember 17, 2024
SHARE
Related News
    • 0

      A symplectic analogy of Hodge theory I

      AbstractIn analogous to the Hodge theory, Tsai, Tseng and Yau constructed a novel cochain complex on symplectic manifolds, based on the Lefschetz decomposion. Its cohomology is closely related to the de Rham cohomology, but also carries the information of the symplectic form. In the talk we will go through the definition and properties of this cochain complex

    • 1

      Geometric Representation Theory Seminar | Higher representation theory of gl(1|1)

      AbstractThe notion of representations of Lie algebras on categories ("2-representations") has proven useful in representation theory. I will discuss joint work with Andrew Manion for the case of the super Lie algebra gl(1|1). A motivation is the reconstruction of Heegaard-Floer theory, a 4-dimensional topological field theory, and its extension down to dimension 1.About the speakerRaphaël Alexi...