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Department of Mathematics, Tokyo Gakugei University | 論文
- A geometric construction of a torus which contains five circles through each point : dedicated to professor Dharma on his 60th birthday.
- A surface which contains planar geodesics II
- A Counter-example for a Theorem of Vinogradov
- Some of Bipolaron Problems (繰り込み群の数理科学での応用)