Kazuhiko Hayakawa is on CollEc

rank value
closeness 12150 5.07954
betweenness 11787 0.766016

co-authors

  1. M Pesaran [ppe34]
  2. Eiji Kurozumi [pku189]
  3. Shuichi Nagata [pna367]
  4. Hiroaki Chigira [pch1256]