A new inequality for distance-regular graphs

A characterization of P- and Q-polynomial association schemes

Paul Terwilliger · Journal of Combinatorial Theory Series A · 1987 · 50 citations

Natural Sciences, Computer Science, Mathematics +7

The Krein condition, spherical designs, Norton algebras and permutation groups

Peter J‎. Cameron, J.-M. Goethals, J.J. Seidel · Indagationes Mathematicae (Proceedings) · 1978 · 49 citations

Natural Sciences, Mathematics, Algebra +10

Krein conditions and near polygons

Arnold Neumaier · Journal of Combinatorial Theory Series A · 1990 · 18 citations

Natural Sciences, Earth Sciences, Geometry +2