1 citations · 1 across the 3 of their papers we have counts for
2 papers
math.CO2012
An excess theorem for spherical 2-designs
Hirotake Kurihara
We give an excess theorem for spherical 2-designs. This theorem is a dual version of the spectral excess theorem for graphs, which gives a characterization of distance-regular grap…
math.CO2010★ 1 cited
A characterization of Q-polynomial association schemes
Hirotake Kurihara, Hiroshi Nozaki
We prove a necessary and sufficient condition for a symmetric association scheme to be a Q-polynomial scheme.