2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/150292P-resolutions of a cyclic quotient singularity are known to be in one-to-one correspondence with the components of the base space of its semi-universal deformation. Stevens and Christophersen have shown that P-resolutions are parametrized by so-called chains representing zero or, equivalently, certain subdivisions of polygons. I give here a purely combinatorial proof of the correspondence between subdivisions of polygons and P-resolutions.8 pages, 4 Postscript figuresAlgebraic Geometrytext