Ishikawa, Masao

• The Electronic Journal of Combinatorics Volume 12 (2005) - Notes
  A Pfaffian–Hafnian Analogue of Borchardt's Identity
  Abstract  PDF
• The Electronic Journal of Combinatorics Volume 33, Issue 3 (2026) - Papers
  Non-Isomorphic Cayley Graphs with Identical Random Walk Distribution
  Abstract  PDF