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Seminars

Seminar
FIELD Math:Analysis
DATE December 22 (Tue), 2020
TIME 15:30-16:50
PLACE Online
SPEAKER ¼®Áø¸í
HOST Jeong, In-Jee
INSTITUTE °æ±â´ëÇб³
TITLE DYNAMICAL STABILITY OF UNIFORMLY ROTATING BINARY STARS
ABSTRACT In this talk, we are concerned with dynamically stability of uniformly rotating binary stars, which are represented as stationary solutions to Euler-Poisson equations. These solutions were constructed as minimizers of suitable variational problems by McCann in which some kind of structural stability on them is discussed. This talk focuses on the nonlinear dynamical stability of them, based on Cazenave-Lions type arguments exploiting variational characterization of stationary solutions. We will see that the uniqueness of a minimizer, which is one of the main results of our work, plays an indispensable role in analysis. This talk is based on a joint work with Prof. Juhi Jang at USC.
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