2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/166274This paper has been withdrawn as the statements in Proposition 4.4 and Theorem 1.4(i) are not correct.This paper has been withdrawnCombinatorics51E12, 05B25On the existence of non-abelian representations of slim dense near hexagons having big quadstext