Shin-Ichi Nishiyama is on CollEc

rank value
closeness 20694 5.36018
betweenness 15657 0.46105

co-authors

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