A characterization of Q-polynomial association schemes

  • Authors:

  • Hirotake Kurihara;Hiroshi Nozaki

  • Affiliations:

  • Mathematical Institute, Tohoku University, Aramaki-Aza-Aoba 6-3, Aoba-ku, Sendai 980-8578, Japan;Graduate School of Information Sciences, Tohoku University, Aramaki-Aza-Aoba 6-3-09, Aoba-ku, Sendai 980-8579, Japan

  • Venue:
  • Journal of Combinatorial Theory Series A
  • Year:
  • 2012

Quantified Score

Hi-index 0.00

Visualization

Abstract

We prove a necessary and sufficient condition for a symmetric association scheme to be a Q-polynomial scheme.