Jet schemes and minimal toric embedded resolutions of rational double point singularities

Abstract

ABSTRACTUsing the structure of the jet schemes of rational double point singularities, we construct “minimal embedded toric resolutions” of these singularities. We also establish, for these singularities, a correspondence between a natural class of irreducible components of the jet schemes centered at the singular locus and the set of divisors which appear on every “minimal embedded toric resolution”. We prove that this correspondence is bijective except for the E8 singulartiy. This can be thought as an embedded Nash correspondence for rational double point singularities.