学术报告(9.27)周麒:Multiplicative Jensen's formula and quantitative global theory for one-frequency Schr\odinger operators
报告题目: Multiplicative Jensen's formula and quantitative global theory for one-frequency Schr\odinger operators
报告人:周麒(南开大学)
报告时间:2022年9月27日16:00-16:50
报告地点:腾讯会议:444-818-709
会议密码请邮件咨询yangdw@vnsclub.net
报告摘要:We explore Avila’s global theory for one-frequency Schrodinger operators from the point of view of Aubry duality. We establish the one-to-one correspondence between the Lyapunov exponent of the Schrodinger cocycles and the Lyapunov exponent of its dua cocycles.
We also give a new equivalent definition of subcritical, critical, supercritical regimes.
Especially, we prove that the acceleration of the Schrodinger cocycle equals to the pair of zero Lyapunov exponents of its dual cocycle.
邀请人:杨大伟