Date | 2019-08-12 |
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Speaker | Atsushi Takahashi |

Dept. | Osaka University |

Room | 129-301 |

Time | 14:00-16:00 |

In 1977, Orlik-Randell conjectured a distinguished basis of vanishing cycles with a nice combinatorial property in the Milnor fiber associated to an invertible polynomial of chain type. Motivated by their conjecture and HMS, we construct a full exceptional collection in the category of maximally graded matrix factorizations, which is a Lefschetz decomposition with respect to a polarization in the sense of Kuznetsov–Smirnov.

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