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...
| Main Authors: | , |
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| Format: | Article |
| Language: | en_US |
| Published: |
Duke University Press
2013
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| Online Access: | http://hdl.handle.net/1721.1/80706 https://orcid.org/0000-0002-8593-2792 |