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Some remarks on
varieties with degenerate Gauss image
Emilia Mezzetti and Orsola Tommasi |
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Vol. 213 (2004), No. 1, 79–88
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Abstract |
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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. |
Milestones
Received: 24 October 2002
Revised: 11 February 2003
Published: 1 January 2004
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Authors |
| Emilia Mezzetti | |
| Dipartimento di Scienze
Matematiche Università di Trieste Via Valerio 12/1, 34127 Trieste Italy |
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| Orsola Tommasi | |
| Department of Mathematics University of Nijmegen Toernooiveld, 6525 ED Nijmegen The Netherlands |
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