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
Yasutsugu Fujita, Maohua Le, Nobuhiro Terai. A note on the solution to the generalized Ramanujan-Nagell equation $$x^2+(4c)^y=(c+1)^z. Indian Journal of Pure and Applied Mathematics. 2023. 54. 4. 1145-1157
Y. Fujita, I. Soldo. The non-existence of D(-1)-quadruples extending certain pairs in imaginary quadratic rings. Acta Mathematica Hungarica. 2023. 170. 2. 455-482
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