| Popis: |
We study the lengths of monotone subsequences for permutations drawn from the Mallows measure. The Mallows measure was introduced by Mallows in connection with ranking problems in statistics. Under this measure, the probability of a permutation $\pi$ is proportional to $q^{{\rm inv}(\pi)}$ where $q$ is a positive parameter and ${\rm inv}(\pi)$ is the number of inversions in $\pi$. In our main result we show that when $0Comment: 20 pages, 1 figure. Corrections to some lemmas suggested by reviewers incorporated, intermediate results added and typos fixed |
