English

Schedules and the Delta Conjecture

Combinatorics 2020-04-01 v2 Representation Theory

Abstract

In a recent preprint, Carlsson and Oblomkov (2018) obtain a long sought after monomial basis for the ring DRn\operatorname{DR}_n of diagonal coinvariants. Their basis is closely related to the "schedules" formula for the Hilbert series of DRn\operatorname{DR}_n which was conjectured by the first author and Loehr (2005) and first proved by Carlsson and Mellit (2018), as a consequence of their proof of the famous Shuffle Conjecture. In this article we obtain a schedules formula for the combinatorial side of the Delta Conjecture, a conjecture introduced by the first author, Remmel and Wilson (2018) which contains the Shuffle Conjecture as a special case. Motivated by the Carlsson-Oblomkov basis for DRn\operatorname{DR}_n and our Delta schedules formula, we introduce a (conjectural) basis for the module SDRn\operatorname{SDR}_n of super-diagonal coinvariants, an SnS_n module generalizing DRn\operatorname{DR}_n introduced recently by Zabrocki (2019) which conjecturally corresponds to the Delta Conjecture.

Keywords

Cite

@article{arxiv.1908.04732,
  title  = {Schedules and the Delta Conjecture},
  author = {James Haglund and Emily Sergel},
  journal= {arXiv preprint arXiv:1908.04732},
  year   = {2020}
}
R2 v1 2026-06-23T10:46:31.843Z