MATH Seminar

Title: Local-global principles over semi-global fields and applications to a generalized period-index problem
Seminar: Algebra
Speaker: Julia Hartmann of University of Pennsylvania
Contact: Parimala Raman,
Date: 2023-02-07 at 4:00PM
Venue: MSC W301
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It is a classical problem to relate the period and index of a Brauer class. Over semi-global fields, i.e., function fields over complete discretely valued fields, local-global principles have been a powerful tool in answering this question. In this talk, we consider an analog of the period-index problem for higher cohomology classes in place of Brauer classes. (Joint work with David Harbater and Daniel Krashen.)

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