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Recruitment Seminar - Allen Juntao Fang

allen
Fri, January 23, 2026
2:00 pm - 3:00 pm
Journalism Building 300 - JR0300

Allen Juntao Fang
University of Muenster

Title
Black holes: Dynamics and Characterization

Abstract
Black holes play a critical role in the famous "final state conjecture" in general relativity, which states that the final state of the universe is several black holes moving away from each other plus some residual radiation. In this talk, I will present an overview of recent progress in mathematical relativity towards understanding the simplest, yet still not fully understood, final state: a single isolated vacuum black hole. In particular, I will discuss the issues of black hole stability and black hole rigidity, and some of my recent work towards understanding the characterization and dynamics of Kerr(-de Sitter).

This talk is based on results joint with Jeremie Szeftel (CNRS, LJLL), Arthur Touati (CNRS, Bordeaux), and Elena Giorgi (Columbia), Jingbo Wan (Sorbonne).