Speaker:
Qi Zhou
Institution:
Nanjing University
Time:
Friday, October 16, 2015 - 2:00pm
Location:
RH 340 P
For the second phase transition line $\lambda=e^{\beta}$ of the almost Mathieu operator, we prove that for dense $\alpha$, the operator has purely singular continuous spectrum for every phases, and for dense $\alpha$, the operator has pure point spectrum for almost every phases. This is joint work with Artur Avila and Svetlana Jitomirskaya.