Yoichi Arai is on CollEc

rank value
closeness 11663 5.0856
betweenness 19107 0.269039

co-authors

  1. Eiji Kurozumi [pku189]
  2. Yu-Chin Hsu [phs7]
  3. Takeo Hoshi [pho107]
  4. MYUNG HWAN SEO [pse168]