English

The flag manifold over the semifield Z

Representation Theory 2020-02-04 v4

Abstract

Let G be a semisimple simply connected group of simply laced type over C. We show that the flag manifold of G has a version defined over the "tropical" semifield Z on which the monoid G(Z) associated to G and the semifield Z acts.

Keywords

Cite

@article{arxiv.1912.13329,
  title  = {The flag manifold over the semifield Z},
  author = {G. Lusztig},
  journal= {arXiv preprint arXiv:1912.13329},
  year   = {2020}
}

Comments

23 pages. A subsection has been removed

R2 v1 2026-06-23T12:59:49.637Z