WEEKLY ACTIVITIES

The Habiro ring, Lie algebras, and invariants of 3-manifolds
Speaker: Prof. Le Tu Quoc Thang

Time: 9h30, Friday, October  7, 2016
Venue: Room 301, Building A5, Institute of Mathematics, VAST, 18 Hoang Quoc Viet, Cau Giay, Ha Noi.
Abstract: The Habiro ring, first appeared topology, has recently attracted attention of number theorists (Manin, Marcolli...) who suggest that it can be considered as the ring of regular functions on the elusive " field with 1 element". In the talk we will give an elementary introduction to the Habiro ring and show that for any simple Lie algebra, there is an invariant of integral homology 3-spheres with values in the Habiro ring which reduces to the famous Witten-Reshetikhin-Turaev invariant at roots of unity. This is joint work with Habiro.

Back

Highlights

20/12/24, Colloquium Lecture:
New matrix perturbation bounds via “skewness”: theory and applications.
06/01/25, Conference:
Geometry and Dynamics in Low Dimensions
06/01/25, Conference:
The 3rd Vietnam - Korea joint workshop on selected topics in mathematics
21/07/25, Conference:
International conference on commutative algebra to the memory of Jürgen Herzog

New Scientiffic Publications