Yichen Ma

collaborators

2 papers

math.CO2025

Convex Geometries via Hopf Monoids: Combinatorial Invariants, Reciprocity, and Supersolvability

Yichen Ma

We study the Hopf monoid of convex geometries, which contains partial orders as a Hopf submonoid, and investigate the combinatorial invariants arising from canonical characters. Ea…

math.CO2024

Involution matrix loci and orbit harmonics

Moxuan J. Liu, Yichen Ma, Brendon Rhoades +1

Let $Mat_{n \times n} (C)$ be the affine space of $n \times n$ complex matrices with coordinate ring $C [x_{n \times n}]$ . We define graded quotie…