報告人:      葛靈睿教授（北京大學伟德国际1946官网）

報告題目：Transition space for the continuity of the Lyapunov exponent of quasiperiodic Schrödinger cocycles

報告時間：2023年10月27日 11:00-12:00

報告地點：江甯校區勵學樓 B 219

邀請人：   陶凱

Abstract: We construct discontinuous point of the Lyapunov exponent of quasiperiodic Schrödinger cocycles in the Gevrey space G^s with s>2. In contrast, the Lyapunov exponent has been proved to be continuous in the Gevrey space G^s with s<2 by Klein. This shows that G^2 is the transition space for the continuity of the Lyapunov exponent.

報告人簡介: 葛靈睿，北京國際數學研究中心教授。主要從事拟周期薛定谔算子譜理論的研究，成果發表在Comm.Pure Appl.Math.，Geom.Funct.Anal.， Ann.Sci.Éc.Norm.Supér.，Peking Math.J.，Adv.Math.，Comm.Math.Phys.等期刊。