**Time:** Thursdays, 10:15-11:45

**Venue:** room 1780 at MIMUW

The seminar is aimed at undergraduate and graduate students and postdocs interested in algebraic and arithmetic geometry.

The goal of the seminar is to understand the proof of the flattening theorem of Gruson and Raynaud and its applications in algebraic geometry and non-Archimedean geometry.
The **seminar syllabus** is here: [PDF].

The first talk will be given on **Mar 2** by Piotr Achinger. We will give an outline of what we plan to do this semester and assign speakers to the talks.

Please contact Piotr pachinger@impan.pl if you would like to be added to the seminar's mailing list.

Mar 2 | Piotr Achinger | Organizational meeting / Introduction and Overview |

Mar 9 | Piotr Achinger | Proof in special cases |

Mar 16 | Sylvain Gaulhiac | Dévissage and criterion of flatness |

Mar 23 | Piotr Oszer | Proof of the flattening theorem (I) |

Mar 30 | Michał Łupiński | Proof of the flattening theorem (II) |

Apr 13 | Feliks Rączka | Relative Riemann–Zariski spaces (I) |

Apr 20 | Feliks Rączka (?) | Relative Riemann–Zariski spaces (I) |

Apr 27 | Mateusz Kobak (?) | Nagata's compactification theorem |

May 11 | Sylvain Gaulhiac | Guignard's proof of the flattening theorem (I) |

May 18 | Mateusz Kobak | Guignard's proof of the flattening theorem (II) |

May 25 | ||

June 1 | ||

June 15 |

**Contact:** pachinger@impan.pl