On the codimension of Noether-Lefshetz loci for toric threefolds

Published 30 Jul 2018 in math.AG | (1807.11426v1)

Abstract: In this manuscript we sharpen the lower bound on the codimension of the irreducible components of the Noether-Lefschetz locus of surfaces in projective toric threefolds given in [BG17]. We also provide a simpler proof of Theorem 4.11 in [BG17], which allows one to avoid some technical assumptions.

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