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Title:
Full measure reducibility and localization for quasi-periodic Jacobi operators: a topological criterion

Speaker:
Rui Han

Abstract:
We establish a topological criterion for connection between reducibility to constant rotations and dual localization, for the general family of analytic quasi-periodic Jacobi operators. As a corollary, we obtain the sharp arithmetic phase transition for the extended Harper's model in the positive Lyapunov exponent region.

Link:
http://scgp.stonybrook.edu/video_portal/video.php?id=2687

Workshop:
Simons- Workshop: Between Dynamics and Spectral Theory