2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/118016Zaslavsky conjectures that the bounded complex of a simple hyperplane arrangement is homeomorphic to a ball. We prove this conjecture for the more general uniform affine oriented matroids.10 pagesCombinatorics52C35, 52C40, 05B35The bounded complex of a uniform affine oriented matroid is a balltext