Normal binary graph models
Combinatorics
2009-06-10 v1 Optimization and Control
Abstract
We show that the marginal semigroup of a binary graph model is normal if and only if the graph is free of K_4 minors. The technique, based on the interplay of normality and the geometry of the marginal cone, has potential applications to other normality questions in algebraic statistics.
Keywords
Cite
@article{arxiv.0906.1784,
title = {Normal binary graph models},
author = {Seth Sullivant},
journal= {arXiv preprint arXiv:0906.1784},
year = {2009}
}
Comments
8 pages