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The length of the longest increasing subsequence in the Brownian separable permutons

Vienna Probability Seminar

Date
Monday, October 23, 2023 15:45 - 16:45
Speaker
William Da Silva (University of Vienna)
Location
Mondi 2 (I01.01.008), Central Building
Series
Seminar/Talk
Tags
Mathematics and CS Seminar, mathematical_seminar_ics
Host
M. Beiglböck, N. Berestycki, L. Erdös, J. Maas, F. Toninelli, E. Schertzer
Contact
Central building mondi1

The Brownian separable permutons are a family of universal limits of random constrained permutations, depending on some parameter p in (0,1). We prove explicit polynomial bounds for the length of the longest increasing subsequence in the Brownian separable permutons, and present simulations suggesting that the lower bound is close to optimal for all p. The strategy relies on a connection to fragmentation processes that I will highlight in the talk. The talk is based on joint work with Jacopo Borga (Stanford University) and Ewain Gwynne (University of Chicago). 


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