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Bannai–Ito conjecture on large-diameter primitive distance-regular graphs
A primitive distance-regular graph is a distance-regular graph with no nontrivial equivalence relation coming from an imprimitive association scheme. Bannai–Ito conjecture. Any pri…
Conjecturesolvedalgebraic-combinatorics distance-regular-graphs q-polynomial-structuresarXiv posted 2 days ago

Bannai–Ito conjecture on large-diameter primitive distance-regular graphs