2 papers
math.CO2026
-polynomial coherent configurations
Eiichi Bannai, Sho Suda, Yan Zhu
Suda introduced the notion of a -polynomial coherent configuration, which provides a natural and important concept. Subsequently, Lato introduced a notion of a -polynomial co…
math.CO2025
Unbiased weighing matrices of weight
Makoto Araya, Masaaki Harada, Hadi Kharaghani +2
We investigate unbiased weighing matrices of weight and provide a construction method using mutually suitable Latin squares. For , we determine the maximum size among…