2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/189525Using a path integral approach we rederive a recently found representation of the Casimir energy for a sphere and a cylinder in front of a plane and derive the first correction to the proximity force theorem.29 pages, references updated, note added and misprints correctedHigh Energy Physics - TheoryThe Casimir effect for a sphere and a cylinder in front of plane and corrections to the proximity force theoremtext