Tight -designs on one shell in Johnson association schemes, joint work with Eiichi Bannai,
European Journal of Combinatorics. 80 (2019), 23–36.
Half of an antipodal spherical design, joint work with Eiichi Bannai, Da Zhao, Lin Zhu, Yinfeng Zhu,
Archiv der Mathematik. 110 (2018), 459-466.
Harmonic index designs in binary Hamming association schemes, joint work with Eiichi Bannai, Etsuko Bannai, Takuya Ikuta, Kyoung-Tark Kim,
Graphs and Combinatorics. 33 (2017), 1405–1418.
On spherical designs of some harmonic indices, joint work with Eiichi Bannai, Etsuko Bannai, Kyoung-Tark Kim, Wei-Hsuan Yu,
Electronic Journal of Combinatorics. 24(2) (2017), #P2.14.
Design theory from the viewpoint of algebraic combinatorics, joint work with Eiichi Bannai, Etsuko Bannai, Hajime Tanaka,
Graphs and Combinatorics. 33(1) (2017) 1–41.
Relative -designs in binary Hamming association scheme , joint work with Eiichi Bannai, Etsuko Bannai,
Designs, Codes and Cryptography. 84 (2017), no. 1, 23–53.
Tight relative -designs on two shells in Johnson association schemes, joint work with Eiichi Bannai, Etsuko Bannai,
Discrete Mathematics. 339(2) (2016) 957–973.
A survey on tight Euclidean -designs and tight relative -designs in certain association schemes, joint work with Eiichi Bannai, Etsuko Bannai,
Proceedings of the Steklov Institute of Mathematics. 288(1) (2015) 189–202.
Classification of feasible parameters by solving Diophantine equations, joint work with Eiichi Bannai, Etsuko Bannai, Ziqing Xiang, Wei-Hsuan Yu.
On the explicit constructions of certain unitary -designs, joint work with Eiichi Bannai, Mikio Nakahara, Da Zhao.
Relative t-designs in Johnson association schemes for P-structure, joint work with Naoki Watamura.