Osamu Ikawa. Motion of charged particles in a compact homogeneous Sasakian manifold. New Horizons in differential geometry and its related fields. 2022. 23-39
Baba Kurando, Osamu Ikawa, Atsumu Sasaki. A duality between non-compact semisimple symmetric pairs and commutative compact semisimple symmetric triads and its general theory. Differential geometry and its applications. 2020
Kurando Baba, Osamu Ikawa, Atsumu Sasaki. A duality between compact symmetric triads and semisimple pseudo-riemannian symmetric pairs with applications to geometry of hermann type actions. Springer Proceedings in Mathematics and Statistics. 2017. 203. 211-221