English

Enriched toric $[\vec{D}]$-partitions

Combinatorics 2022-09-12 v2

Abstract

This paper develops the theory of enriched toric [D][\vec{D}]-partitions. Whereas Stembridge's enriched PP-partitions give rises to the peak algebra which is a subring of the ring of quasi-symmetric functions QSym\text{QSym}, our enriched toric [D][\vec{D}]-partitions will generate the cyclic peak algebra which is a subring of cyclic quasi-symmetric functions cQSym\text{cQSym}. In the same manner as the peak set of linear permutations appears when considering enriched PP-partitions, the cyclic peak set of cyclic permutations plays an important role in our theory. The associated order polynomial is discussed based on this framework.

Cite

@article{arxiv.2209.00051,
  title  = {Enriched toric $[\vec{D}]$-partitions},
  author = {Jinting Liang},
  journal= {arXiv preprint arXiv:2209.00051},
  year   = {2022}
}

Comments

32 pages

R2 v1 2026-06-28T00:30:50.276Z