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Probability Seminar: Louis-Pierre Arguin, Baruch College
November 5, 2015 @ 3:30 pm - 4:30 pm
The maximum of the characteristic polynomial of random unitary matrices
A recent conjecture of Fyodorov, Hiary & Keating (FHK) states that the maxima of the characteristic polynomial of random unitary matrices behave like the maxima of a specific class of Gaussian fields, the so-called log-correlated Gaussian fields. These include important examples such as branching Brownian motion and the 2D Gaussian free field. In this talk, we will highlight the connections between the two problems. We will outline the proof of the conjecture for the leading order of the maximum. We will also discuss the connections with the FHK conjecture for the maximum of the Riemann zeta function on the critical line. This is based on joint works with D. Belius (NYU), P. Bourgade (NYU), and A. Harper (Cambridge).
Refreshments will be served at 4:00 in the 3rd floor lounge of Hanes Hall