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A general beta crossover ensemble

Mathematical Physics & Probability

Speaker: Brian Rider, Temple University
Related Webpage: https://math.temple.edu/~brider/
Location: 1147 MSB
Start time: Wed, Feb 19 2020, 4:10PM

I'll describe an operator limit for a family of general beta ensembles which exhibit a double-scaling. In particular, a free parameter in the system provides for a cross-over between the more well-known soft" and "hard" edge point processes. Our new limit operator takes as input the Riccati diffusion associated with the Stochastic Airy Operator. This suggests a hierarchy of random operators analogous to the Painleve hierarchy observed at the level of correlation functions for double-scaling ensembles most widely studied at $\beta = 2$. Joint work with Jose Ramírez (Univ. Costa Rica).