[Notice] 30th KMGS on March 28 (Thu), 2024

The 30th KMGS will be held on March 28th, Thursday, at Natural Science Building (E6-1) Room 1501.
We invite a speaker Dongha Lee from the Dept. of Mathematical Sciences, KAIST.
The abstract of the talk is as follows.

Slot (AM 11:50~PM 12:30)
[Speaker] 이동하 (Dongha Lee) from Dept. of Mathematical Sciences, KAIST, supervised by Prof. 박진성, Jinsung Park (KIAS) and Prof. 백형렬, Hyungryul Baik
[Title] The Renormalization of Volume and Chern-Simons Invariant for Hyperbolic 3-Manifolds
[Discipline] Differential Geometry
[Abstract]
For hyperbolic manifolds, many interesting results support a deep relationship between hyperbolic volume and the Chern-Simons invariant. In this talk, we consider noncompact hyperbolic 3-manifolds having infinite volume. For these manifolds, there is a well-defined invariant called the renormalized volume which replaces classical volume. The talk will start from a gentle introduction to hyperbolic geometry and reach the renormalization of the Chern-Simons invariant, which has a close relationship with the renormalized hyperbolic volume.
[Language] English