The paper is available on arXiv: 1704.02675.
The paper "Maximal m-distance sets containing the representation of the Hamming graph H(n,m)" has been published on Discrete math. Online first
(0, ±1) ベクトルの最大距離を避ける最大部分集合について
The paper "Maximizing the order of a regular graph of given valency and second eigenvalue" with Sebastian M. Cioabă, Jack H. Koolen, and Jason R. Vermette has been accepted for publication in SIAM J. Discrete Math.
The paper is available on arXiv:1602.01215.
The paper "Polynomial Properties on Large Symmetric Association Schemes" has been published.
The paper "On the largest subsets avoiding the diameter of (0,±1)-vectors" with Saori Adachi
has been accepted for publication in ARS MATHEMATICA CONTEMPORANEA.