Wei-Hsuan Yu

activity

20122026

s

-distance sets and equiangular lines

16 citations · 53 across the 30 of their papers we have counts for

collaborators

Showing 2020Show all

3 papers · 1 filter

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…

math.CO2020★ 1 cited

Semidefinite Programming Bounds For Spherical Three-distance Sets

Feng-Yuan Liu, Wei-Hsuan Yu

A spherical three-distance set is a finite collection $X$ of unit vectors in $R^{n}$ such that for each pair of distinct vectors has three inner product values. We use the…

math.CO2020★ 2 cited

The Lemmens-Seidel conjecture and forbidden subgraphs

Meng-Yue Cao, Jack H, Koolen +2

In this paper we show that the conjecture of Lemmens and Seidel of 1973 for systems of equiangular lines with common angle $arccos (1/5)$ is true. Our main tool is forbidden subgr…