Multiple fibers of del Pezzo fibrations
classification
🧮 math.AG
keywords
fibersmultiplepezzoclassificationconfigurationsexamplesfibrationfibrations
read the original abstract
We prove that a terminal three-dimensional del Pezzo fibration has no fibers of multiplicity $\ge 6$. We also obtain a rough classification possible configurations of singular points on multiple fibers and give some examples.
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