Mathematics – Algebraic Geometry
Scientific paper
2000-11-07
Mathematics
Algebraic Geometry
Scientific paper
We study algebraic fiber spaces $f:X \longrightarrow Y$ where $Y$ is of maximal Albanese dimension. In particular we give an effective version a theorem of Kawamata: If $P_m(X)=1$ for some $m \ge 2$, then the Albanese map of $X$ is surjective. Combining this with \cite{CH} it follows that $X$ is birational to an abelian variety if and only if $P_2(X)=1$ and $q(X)= \text{\rm dim} (X)$.
Chen Jungkai A.
Hacon Christopher D.
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