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SUMMARY:Limiting directions for random walks in affine Weyl groups - Arvin
d Ayyer (Indian Institute of Science\, Bangalore)
DTSTART;VALUE=DATE-TIME:20180521T120000
DTEND;VALUE=DATE-TIME:20180521T130000
UID:https://talks.ox.ac.uk/talks/id/16725332-6d01-4154-8d50-cce4c902cbf9/
DESCRIPTION:The multispecies totally asymmetric simple exclusion process (
MTASEP) is an interacting particle system defined on a finite one-dimensio
nal integer lattice with periodic boundary conditions. The exact stationar
y distribution of this Markov process was described by P. Ferrari and J. M
artin using multiclass M/M/1 queues. Recently\, T. Lam considered a random
walk on the alcoves of an affine Weyl group conditioned never to cross th
e same hyperplane twice. He proved that the limiting direction of this wal
k exists almost surely\, and conjectured a formula for it for \\tilde{A}_n
. I will describe joint work with S. Linusson\, where we solved this conje
cture by computing this limiting direction as certain correlations of the
MTASEP.\n\nTime permitting\, I will describe extensions of our work for th
e affine Weyl group \\tilde{C}_n. This involves the study of correlations
in a multispecies exclusion process with open boundaries (i.e.\, allowing
the entry and exit of particles). Here\, we have also computed this limiti
ng direction building on existing work of C. Arita\, in joint work with E.
Aas\, S. Linusson and S. Potka.\nSpeakers:\nArvind Ayyer (Indian Institut
e of Science\, Bangalore)
LOCATION:Mathematical Institute\, Woodstock Road OX2 6GG
TZID:Europe/London
URL:https://talks.ox.ac.uk/talks/id/16725332-6d01-4154-8d50-cce4c902cbf9/
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DESCRIPTION:Talk:Limiting directions for random walks in affine Weyl group
s - Arvind Ayyer (Indian Institute of Science\, Bangalore)
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