# STAGE

algebraic geometry number theory

Audience: | Advanced learners |

Seminar series time: | Tuesday 15:00-16:30 in your time zone, UTC |

Organizers: | Niven Achenjang*, Weixiao Lu*, Bjorn Poonen*, Vijay Srinivasan*, Xinyu Zhou |

*contact for this listing |

STAGE (Seminar on Topics in Arithmetic, Geometry, Etc.) is a learning seminar in algebraic geometry and number theory, featuring speakers talking about work that is not their own. Talks will be at a level suitable for graduate students. Everyone is welcome.

Fall 2022 topic: Cohomological obstructions to rational points.

Some topics might take more or less time than allotted. If a speaker runs out of time on a certain date, that speaker might be allowed to borrow some time on the next date. So the topics below might not line up exactly with the dates below.

Upcoming talks

Past talks

Your time | Speaker | Title | |||
---|---|---|---|---|---|

Tue | Sep 27 | 15:00 | Hao Peng | Brauer groups of schemes | |

Tue | Oct 04 | 15:00 | Haoshuo Fu | The Hochschild-Serre spectral sequence | |

Tue | Oct 11 | 15:00 | Weixiao Lu | Residue homomorphisms and examples of Brauer groups | |

Tue | Oct 18 | 15:00 | Vijay Srinivasan | The Brauer-Manin obstruction | |

Tue | Oct 25 | 15:00 | Aashraya Jha | The Brauer-Manin obstruction for conic bundles | |

Tue | Nov 01 | 15:00 | Anne Larsen | Torsors of algebraic groups over a field | |

Tue | Nov 08 | 16:00 | TBA | Torsors over finite fields, local fields, and global fields | |

Tue | Nov 15 | 16:00 | Alice Lin | Torsors over a scheme | |

Tue | Nov 22 | 16:00 | TBA | Unramified torsors | |

Tue | Nov 29 | 16:00 | TBA | An example of descent | |

Tue | Dec 06 | 16:00 | Niven Achenjang | The descent obstruction | |

Tue | Dec 13 | 16:00 | TBA | The étale-Brauer obstruction and insufficiency of the obstructions |

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