Quadratic forms on rings and the homotopy limit problem

Denis Nardin (Regensburg)

09-Jul-2021, 19:00-20:00 (19 months ago)

Abstract: Hermitian K-theory is an invariant of rings (or, more generally, schemes) constructed using the behaviour of quadratic forms. In recent years significant progress has been made in the study of it for rings where 2 is not invertible. In this talk I will give an introduction to the subject from a modern perspective, using as a guide work in progress on the homotopy limit problem, which essentially is asking how much information we can recover from just knowing the algebraic K-theory of the ring.

algebraic geometry

Audience: researchers in the topic

( slides | video )

Stanford algebraic geometry seminar

Series comments: This seminar requires both advance registration, and a password. Register at stanford.zoom.us/meeting/register/tJEvcOuprz8vHtbL2_TTgZzr-_UhGvnr1EGv Password: 362880

If you have registered once, you are always registered for the seminar, and can join any future talk using the link you receive by email. If you lose the link, feel free to reregister. This might work too: stanford.zoom.us/j/95272114542

More seminar information (including slides and videos, when available): agstanford.com

Organizer: Ravi Vakil*
*contact for this listing

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