Neron-Severi groups under specialization
Andre used Hodge-theoretic methods to show that in a smooth proper family X → B of varieties over an algebraically closed field k of characteristic zero, there exists a closed fiber having the same Picard number as the geometric generic fiber, even if k is countable. We give a completely different a...
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Format: | Article |
Language: | English |
Published: |
Duke University Press,
2013-09-13T12:41:58Z.
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Subjects: | |
Online Access: | Get fulltext |