报告人：王钰聪副教授（湘潭大学）

时 间：2026年05月14日星期四 下午16:30-17:30

地 点：数理楼135报告厅

题 目：Dynamical magneto-rotational instability

摘 要：Magneto-rotational instability (MRI) is an important instability mechanism for rotating flows with magnetic field. In particular, when the strength of the magnetic field tends to zero, the stability criterion for rotating flow is different from the classical Rayleigh criterion for rotating flow without magnetic field. MRI had found many physical applications, for example in the explanation of turbulence and momentum transport in accretion disks. We gave the first rigorous proof of linear MRI and a complete description of the spectra. Moreover, we prove nonlinear stability and instability from the linear stability/instability criteria. This work is joint with Zhiwu Lin and Wenpei Wu.

报告人简介：王钰聪，湘潭大学数学与计算科学学院副教授，主要研究天体物理相关的流体偏微分方程的稳定性理论。在Analysis & PDE., Comm. Math. Phys., Math. Ann., JFA., JDE.等学术期刊发表多篇论文。