Classification of smooth Mori fibrations birational to the double cone variety
Classification of smooth Mori fibrations birational to the double cone variety
Let be the Fano variety of index and degree described in the surrounding text, and let be the contraction associated with a curve on . A smooth Mori fibration is a Mori fibration whose total space is smooth; two varieties are in the same class of birational equivalency when they are birational.
Classification conjecture. Any smooth Mori fibration birational to is biregular to either or for some curve .
The conjecture is motivated by the failure of the maximal singularities method to handle all cases, including when has a double point. The supplied text gives no resolution status.
Sources & referencesView supporting material
Primary source
Mikhail Grinenko, “Birational properties of pencils of del Pezzo surfaces of degree 1 and 2”, arXiv:math/0002252 (2000).
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