Negative deformations of toric singularities that are smooth in codimension two

Details Negative deformations of toric singularities that are smooth in codimension two Negative deformations of toric singularities that are smooth in codimension two

2011-09-15

arxiv.org/abs/1109.3344v1

Mathematics

Algebraic Geometry

Scientific paper

Given a polyhedral cone sigma with smooth two-dimensional faces and, moreover, a lattice point R in the dual cone of sigma, we describe the part of the versal deformation of the associated toric variety TV(sigma) that is built from the deformation parameters of multidegree R. Let Q the polyhedron obtained by intersecting sigma with the hyperplane R=1. Then the base space is (the germ of) an affine scheme that reflects certain possibilities of splitting Q into Minkowski summands.

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