Positroids have the Rayleigh property
Combinatorics
2016-11-14 v1
Abstract
The Rayleigh property is a negative correlation property of electrical networks, which was generalized to matroids by Choe and Wagner. We prove that positroids, a class of matroid introduced by Postnikov which have seen many recent applications in both math and physics, have the Rayleigh property.
Cite
@article{arxiv.1611.03583,
title = {Positroids have the Rayleigh property},
author = {Cameron Marcott},
journal= {arXiv preprint arXiv:1611.03583},
year = {2016}
}
Comments
9 pages