2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/226827We describe the integral equivariant cohomology ring of a weighted projective space in terms of piecewise polynomials, and thence by generators and relations. We deduce that the ring is a perfect invariant, and prove a Chern class formula for weighted projective bundles.11 pages; improved expositionAlgebraic TopologyAlgebraic Geometry55N91 (Primary); 13F55, 14M25 (Secondary)text