| 2007 | ||
|---|---|---|
| 3 | Keita Yokoyama: Complex analysis in subsystems of second order arithmetic. Arch. Math. Log. 46(1): 15-35 (2007) | |
| 2 | Nobuyuki Sakamoto, Keita Yokoyama: The Jordan curve theorem and the Schönflies theorem in weak second-order arithmetic. Arch. Math. Log. 46(5-6): 465-480 (2007) | |
| 1 | Keita Yokoyama: Non-standard analysis in ACA0 and Riemann mapping theorem. Math. Log. Q. 53(2): 132-146 (2007) | |
| 1 | Nobuyuki Sakamoto | [2] |