Chaotic Motion of the N-Vortex Problem on a Sphere: I. Saddle-Centers in Two-Degree-of-Freedom Hamiltonians. - Takashi Sakajo; Kazuyuki Yagasaki (J. Nonlinear Sci., 2008)

Distributional Enstrophy Dissipation Via the Collapse of Three Point Vortices. - Takeshi Gotoda; Takashi Sakajo (J. Nonlinear Sci., 2016)

Toroidal Geometry Stabilizing a Latitudinal Ring of Point Vortices on a Torus. - Takashi Sakajo; Yuuki Shimizu (J. Nonlinear Sci., 2018)

Universality of the Anomalous Enstrophy Dissipation at the Collapse of Three Point Vortices on Euler-Poincaré Models. - Takeshi Gotoda; Takashi Sakajo (SIAM J. Appl. Math., 2018)

Spot Dynamics of a Reaction-Diffusion System on the Surface of a Torus. - Takashi Sakajo; Penghao Wang (SIAM J. Appl. Dyn. Syst., 2021)

Discrete representations of orbit structures of flows for topological data analysis. - Takashi Sakajo; Tomoo Yokoyama (Discret. Math. Algorithms Appl., 2023)

Topological Identification of Vortical Flow Structures in the Left Ventricle of the Heart. - Takashi Sakajo; Keiichi Itatani (SIAM J. Imaging Sci., 2023)

Geometric Ergodicity for Hamiltonian Monte Carlo on Compact Manifolds. - Kota Takeda; Takashi Sakajo (SIAM J. Numer. Anal., 2023)

Uniform error bounds of the ensemble transform Kalman filter for infinite-dimensional dynamics with multiplicative covariance inflation. - Kota Takeda; Takashi Sakajo (CoRR, 2024)

Uniform Error Bounds of the Ensemble Transform Kalman Filter for Chaotic Dynamics with Multiplicative Covariance Inflation. - Kota Takeda; Takashi Sakajo (SIAM/ASA J. Uncertain. Quantification, 2024)