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  1. Can a three-dimensional Beltrami vortex exist?

    Article • J — Multidisciplinary Scientific Journal, August 2023, MDPI AG

    Dr. Koichi Takahashi

  2. Three-dimensional unsteady axisymmetric vortex solutions to the Bellamy-Knights equation and the distribution of boundary conditions

    Article • AIP Advances, August 2022, American Institute of Physics

    Dr. Koichi Takahashi