2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/168800For every Banach space $Z$ with a shrinking unconditional basis satisfying upper $p$-estimates for some $p > 1$, an isomorphically polyhedral Banach space is constructed having an unconditional basis and admitting a quotient isomorphic to $Z$.Functional Analysis46B03text