A Markov chain on the symmetric group which is Schubert positive?

Details A Markov chain on the symmetric group which is Schubert positive? A Markov chain on the symmetric group which is Schubert positive?

2011-02-22

arxiv.org/abs/1102.4406v2

Mathematics

Combinatorics

5 pages

Scientific paper

We study a multivariate Markov chain on the symmetric group with remarkable enumerative properties. We conjecture that the stationary distribution of this Markov chain can be expressed in terms of positive sums of Schubert polynomials. This Markov chain is a multivariate generalization of a Markov chain introduced by the first author in the study of random affine Weyl group elements.

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