Kouichi Taira. Smoothness of the fundamental solution of Schrödinger equations with mild trapping. Proc. Amer. Math. Soc. 2023. 151. 2073-2080
Shu Nakamura, Kouichi Taira. A Remark on the Essential Self-adjointness for Klein-Gordon-Type Operators. Annales Henri Poincaré. 2023
Shu Nakamura, Kouichi Taira. Essential Self-Adjointness of Klein-Gordon Type Operators on Asymptotically Static, Cauchy-Compact Spacetimes. Communications in Mathematical Physics. 2022. 398. 3. 1153-1169
Kouichi Taira. A remark on Strichartz estimates for Schrödinger equations with slowly decaying potentials. Proceedings of the American Mathematical Society. 2022. 150. 9. 3953-3958
Kouichi Taira. Remarks on the geodesically completeness and the smoothing effect on asymptotically Minkowski spacetimes. Letters in Mathematical Physics. 2022. 112. 2