Generalized Clifford-Severi inequality and the volume of irregular varieties
Cita com:
hdl:2117/27518
Tipus de documentArticle
Data publicació2015-02-15
Condicions d'accésAccés obert
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Reconeixement-NoComercial-SenseObraDerivada 3.0 Espanya
Abstract
We give a sharp lower bound for the self-intersection of a nef line bundle L on an irregular variety X in terms of its continuous global sections and the Albanese dimension of X, which we call the generalized Clifford-Severi inequality. We also extend the result to nef vector bundles and give a slope inequality for fibered irregular varieties. As a by-product we obtain a lower bound for the volume of irregular varieties; when X is of maximal Albanese dimension the bound is vol(X) >= 2n!chi(omega(X)) and it is sharp.
CitacióBarja, M. Generalized Clifford-Severi inequality and the volume of irregular varieties. "Duke mathematical journal", 15 Febrer 2015, vol. 164, núm. 3, p. 541-568.
ISSN0012-7094
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