Tag Archives: Jean-Pierre Tillich

Octonions to the Rescue

Xavier Dahan and Jean-Pierre Tillich’s Octonion-based Ramanujan Graphs with High Girth. Update (February 2012): Non associative computations can be trickier than we expect. Unfortunately, the paper by Dahan and Tillich turned out to be incorrect. Update: There is more to … Continue reading

Posted in Combinatorics, Open problems, Computer Science and Optimization, Physics, Algebra and Number Theory | Tagged , , , | 11 Comments