2 papers
math.CO2022
Semidefinite programming bounds for complex spherical codes
Wei-Jiun Kao, Sho Suda, Wei-Hsuan Yu
A complex spherical code is a finite subset on the unit sphere in . A fundamental problem on complex spherical codes is to find upper bounds for those with prescribed…
math.CO2022
Four-point semidefinite bound for equiangular lines
Wei-Jiun Kao, Wei-Hsuan Yu
A set of lines in passing through the origin is called equiangular if any two lines in the set form the same angle. We proved an alternative version of the three-poi…