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Varieties with a reducible hyperplane section whose two components are hypersurfaces
Author(s):
José
Carlos
Sierra;
Andrea
Luigi
Tironi
Journal:
Proc. Amer. Math. Soc.
135
(2007),
1263-1269.
MSC (2000):
Primary 14C20;
Secondary 14N05.
Posted:
November 13, 2006
MathSciNet review:
2276633
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Abstract:
We classify smooth complex projective varieties of dimension admitting a divisor of the form among their hyperplane sections, both and of codimension in their respective linear spans. In this setting, one of the following holds: 1) is either the Veronese surface in or its general projection to , 2) and is contained in a quadric cone of rank or , 3) and .
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Additional Information:
José
Carlos
Sierra
Affiliation:
Departamento de Álgebra, Facultad de Ciencias Matemáticas, Universidad Complutense de Madrid, 28040 Madrid, Spain
Email:
jcsierra@mat.ucm.es
Andrea
Luigi
Tironi
Affiliation:
Dipartimento di Matematica ``F. Enriques", Università degli Studi di Milano, Via C. Saldini 50, 20133 Milano, Italy
Email:
atironi@mat.unimi.it
DOI:
10.1090/S0002-9939-06-08637-0
PII:
S 0002-9939(06)08637-0
Keywords:
Algebraic geometry,
reducible hyperplane sections of varieties.
Received by editor(s):
January 21, 2005
Received by editor(s) in revised form:
December 6, 2005
Posted:
November 13, 2006
Additional Notes:
This work was done in the framework of the National Research Project ``Geometry on Algebraic Varieties'', supported by the MIUR of the Italian Government (Cofin 2002).
Communicated by:
Michael Stillman
Copyright of article:
Copyright
2006,
American Mathematical Society
The copyright for this article reverts to public domain after 28 years from publication.
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