Zi-Li Xu

activity

20202025

collaborators

Showing math.COShow all

2 papers · 1 filter

math.CO2025

Existence and nonexistence of spherical $5$ -designs of minimal type

Sho Suda, Zili Xu, Wei-Hsuan Yu

This paper investigates the existence and properties of spherical $5$ -designs of minimal type. We focus on two cases: tight spherical $5$ -designs and antipodal spherical $4$ -distan…

math.CO2020

Bounds on antipodal spherical designs with few angles

Zhiqiang Xu, Zili Xu, Wei-Hsuan Yu

A finite subset $X$ on the unit sphere $S^{d - 1}$ is called an $s$ -distance set with strength $t$ if its angle set $A(X):=\{\langle \mathbf{x},\mathbf{y}\rangle : \mathbf{x…

Existence and nonexistence of spherical 5-designs of minimal type

Bounds on antipodal spherical designs with few angles

Existence and nonexistence of spherical $5$ -designs of minimal type