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COLLOQUIA

From hopping particles to Macdonald-Koornwinder polynomials

Lauren Williams: Berkeley

Location:  Hill 705
Date & time: Friday, 24 March 2017 at 4:00PM - 4:11PM

The asymmetric simple exclusion process (ASEP) is a Markov chain describing particles hopping on a 1-dimensional finite lattice. Particles can enter and exit the lattice at the left and right boundaries, and particles can hop left and right in the lattice, subject to the condition that there can be at most one particle per site. The ASEP has been cited as a model for traffic flow, protein synthesis, the nuclear pore complex, etc. In my talk I will discuss joint work with Corteel and with Corteel-Mandelshtam, in which we describe the stationary distribution of the ASEP and the 2-species ASEP using staircase tableaux and rhombic tilings. I will also discuss the link between these models and Askey-Wilson polynomials and Macdonald-Koornwinder polynomials.

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Department of Mathematics

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Rutgers University
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