We use Minimal model theory to link birational maps of log surfaces (log contractions) to equidimensional fibrations of elliptic threefolds. In particular we give a necessary and sufficient condition for an elliptic threefold X → S to be birationally equivalent to an equidimensional elliptic fibration
Log contractions and equidimensional models of elliptic threefolds
Grassi , Antonella
1995
Abstract
We use Minimal model theory to link birational maps of log surfaces (log contractions) to equidimensional fibrations of elliptic threefolds. In particular we give a necessary and sufficient condition for an elliptic threefold X → S to be birationally equivalent to an equidimensional elliptic fibrationFile in questo prodotto:
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