Halphen Pencils on Weighted Fano Threefold Hypersurfaces
Ivan Cheltsov, Jihun Park
math.AGarXiv:math/0607776
Abstract
We classify all pencils on a general weighted hypersurface in P(1,a1,a2,a3,a4) of degree Σi=14ai whose general members are surfaces of Kodaira dimension zero.
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