Three Fisher-Rao Identities on the Binary Statistical Manifold: Jeffreys Uniqueness, the Gudermannian Bridge, and Isotropic Retention. Eur. J. Pure Appl. Math. [Internet]. 2026 Jul. 28 [cited 2026 Jul. 28];19(2):7819. Available from: https://www.ejpam.com/ejpam/article/view/7819