2 papers
math.ST2026
Multivariate normality test based on the uniform distribution on the Stiefel manifold
Koki Shimizu, Toshiya Iwashita
This study presents a new procedure for necessary tests of multivariate normality based on the uniform distribution on the Stiefel manifold. We demonstrate that the test statistic,…
stat.ME2023
A gamma tail statistic and its asymptotics
Toshiya Iwashita, Bernhard Klar
Asmussen and Lehtomaa [Distinguishing log-concavity from heavy tails. Risks 5(10), 2017] introduced an interesting function which is able to distinguish between log-convex and…