English

Classifications of $\Gamma$-colored $d$-complete posets and upper $P$-minuscule Borel representations

Combinatorics 2021-02-02 v1 Representation Theory

Abstract

The Γ\Gamma-colored dd-complete posets correspond to certain Borel representations that are analogous to minuscule representations of semisimple Lie algebras. We classify Γ\Gamma-colored dd-complete posets which specifies the structure of the associated representations. We show that finite Γ\Gamma-colored dd-complete posets are precisely the dominant minuscule heaps of J.R. Stembridge. These heaps are reformulations and extensions of the colored dd-complete posets of R.A. Proctor. We also show that connected infinite Γ\Gamma-colored dd-complete posets are precisely order filters of the connected full heaps of R.M. Green.

Keywords

Cite

@article{arxiv.2008.06745,
  title  = {Classifications of $\Gamma$-colored $d$-complete posets and upper $P$-minuscule Borel representations},
  author = {Michael C. Strayer},
  journal= {arXiv preprint arXiv:2008.06745},
  year   = {2021}
}

Comments

20 pages, 2 figures, 1 table