Some remarks on varieties with degenerate Gauss image
Algebraic Geometry
2007-05-23 v1 Differential Geometry
Abstract
We consider projective varieties with degenerate Gauss image whose focal hypersurfaces are non-reduced schemes. Examples of this situation are provided by the secant varieties of Severi and Scorza varieties. The Severi varieties are moreover characterized by a uniqueness property.
Keywords
Cite
@article{arxiv.math/0304127,
title = {Some remarks on varieties with degenerate Gauss image},
author = {Emilia Mezzetti and Orsola Tommasi},
journal= {arXiv preprint arXiv:math/0304127},
year = {2007}
}
Comments
9 pages, to be published in Pacific Journal of Mathematics