2024 - 2027 Diophantus の m 組と Ramanujan-Nagell 型方程式の研究
2016 - 2020 楕円曲線の族に伴う不定方程式の明示解
2013 - 2016 楕円曲線の有理点と整数点,および関連する不定方程式の研究
論文 (74件):
Mihai Cipu, Andrej Dujella, Yasutsugu Fujita. Extensions of a Diophantine triple by adjoining smaller elements II. Periodica Mathematica Hungarica. 2024. 89. 1. 54-60
YASUTSUGU FUJITA, MAOHUA LE. A NOTE ON THE GOORMAGHTIGH EQUATION CONCERNING DIFFERENCE SETS. Bulletin of the Australian Mathematical Society. 2024. 109. 3. 443-452
Mihai Cipu, Yasutsugu Fujita, Maurice Mignotte. Diophantine triples with three parameters. Research in Number Theory. 2024. 10. 2
Yasutsugu Fujita, Maohua Le. Uniqueness conjecture on simultaneous Pell equations. II. Publicationes Mathematicae Debrecen. 2024. 104. 3-4. 499-522
Mihai Cipu, Yasutsugu Fujita. On the length of $D(\pm 1)$-tuples in imaginary quadratic rings. Bulletin of the London Mathematical Society. 2024. 56. 1. 274-287
Mihai Cipu, Yasutsugu Fujita and Maurice Mignotte. The unique extensions of two parametric families of Diophantine triples. 数理解析研究所講究録. 2021. 2203. 41-47