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题目: Theory of symplectic cocycles and Schrodinger operators on strips


报告人:Disheng Xu, University of Chicago


摘要: In this talk we will show the similarities of the theory of SL(2,R) cocycles and that of Symplectic cocycles. In particular we prove that Sp(2d;R),HSp(2d) and pseudo unitary cocycles with at least one non-zero Lyapunov exponent are dense in all usual regularity classes for non periodic dynamical systems. For Schrodinger operator on the strip, we will show a similar result for density of positive Lyapunov exponents.


时间:2017年9月26日 14:00--16:00




邀请人:周麒  老师