On some Fano 4-folds with Lefschetz defect 3
Algebraic Geometry
2020-07-22 v2
Abstract
We show that Fano 4-folds with Picard number 5 have Lefschetz defect 3 if and only if they are toric of combinatorial type K. We also find a characterization for such varieties in terms of Picard number of prime divisors. Moreover, we discuss classification results for 4-dimensional complex smooth projective varieties admitting some particular fiber type contractions.
Keywords
Cite
@article{arxiv.1907.01213,
title = {On some Fano 4-folds with Lefschetz defect 3},
author = {Eleonora Anna Romano},
journal= {arXiv preprint arXiv:1907.01213},
year = {2020}
}
Comments
Mistake in Theorem 1.0.1