A simple combinatorial criterion for projective toric manifolds with dual defect
A simple combinatorial criterion for projective toric manifolds with dual defect
We show that any smooth lattice polytope P with codegree greater or equal than (dim(P ) + 3)/2 (or equivalently, with degree smaller than dim(P )/2), defines a dual defective projective toric manifold.This implies that P is Q-normal (in the terminology of [11]) and answers partially an adjunction-theoretic conjecture by …