A rigidity theorem for small resolutions
arXiv:1203.1500
Abstract
This paper presents a rigidity property of the exceptional locus of some kind of small birational contractions. An application in the context of geometric transitions and Calabi-Yau threefolds moduli space is then given, with some physical implication in studying the so-called Vacuum Degeneracy Problem.
This paper has been withdrawn due to a crucial error in diagram (11)