Schubert valuations on Grassmann varieties

arXiv (Cornell University)

Abstract

The goal of the paper is twofold: on one side it provides an order structure on the set of all maximal chains in the Bruhat poset of Schubert varieties in a Grassmann variety; on the other hand, using this order structure, it works out explicit formulae for the valuation and the Newton-Okounkov body associated to each maximal chain appearing in the framework of Seshadri stratification.

Authors 3

1. Rocco Chirivì
2. Xin Fang Aachen

   RWTH Aachen University

   Affiliation as printed

   RWTH Aachen

3. Peter Littelmann