English

Birational geometry of defective varieties

Algebraic Geometry 2007-05-23 v1

Abstract

Here we investigate the birational geometry of projective varieties of arbitrary dimension having defective higher secant varieties. We apply the classical tool of tangential projections and we determine natural conditions for uniruledness, rational connectivity, and rationality.

Keywords

Cite

@article{arxiv.math/0406320,
  title  = {Birational geometry of defective varieties},
  author = {Edoardo Ballico and Claudio Fontanari},
  journal= {arXiv preprint arXiv:math/0406320},
  year   = {2007}
}
R2 v1 2026-07-22T17:06:46.483Z