L∞/ L2 Hankel Norm Analysis and Characterization of Critical Instants for Continuous-Time Linear Periodically Time-Varying Systems. - Tomomichi Hagiwara; Taichi Yuyama; Jung Hoon Kim 001 (CDC, 2023)

Fault Detection in Robust Control by Using Disturbance Observer and Test Signals. - Taichi Yuyama; Ibuki Tsuji; Kana Shikada; Noboru Sebe; Koichi Suyama (ANZCC, 2025)