Yan Zhu

activity

20152026

most citedOn the explicit constructions of certain unitary

t

-designs

11 citations · 19 across the 9 of their papers we have counts for

collaborators

Showing 2026Show all

2 papers · 1 filter

math.CO2026

Trivariate $P$ - and $Q$ -polynomial structures for interior shells of the Grassmann scheme

Yan Zhu

Association schemes induced on the shells of the Grassmann scheme $G r_{q} (N, a)$ form an important family in the study of multivariate $P$ - and $Q$ -polynomial structures. For $a < N /2$ ,…

math.CO2026

$P$ -polynomial coherent configurations

Eiichi Bannai, Sho Suda, Yan Zhu

Suda introduced the notion of a $Q$ -polynomial coherent configuration, which provides a natural and important concept. Subsequently, Lato introduced a notion of a $P$ -polynomial co…

Trivariate P- and Q-polynomial structures for interior shells of the Grassmann scheme

P-polynomial coherent configurations

Trivariate $P$ - and $Q$ -polynomial structures for interior shells of the Grassmann scheme

$P$ -polynomial coherent configurations