Shin-Ichi Nishiyama is on CollEc

rank value
closeness 20142 5.37168
betweenness 14713 0.501717

co-authors

  1. Ryo Kato [pka55]
  2. WAKO WATANABE [pwa369]
  3. Masao Ogaki [pog9]
  4. Ian Christensen [pch762]