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Home » What in the world is a spectrum? (#2) Frobenius and the Tate diagonal

Seminar

What in the world is a spectrum? (#2) Frobenius and the Tate diagonal March 22, 2019 (11:00 AM PDT - 12:00 PM PDT)
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Location: MSRI: Simons Auditorium
Speaker(s) Kirill Magidson (Higher School of Economics)
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In his announcement of the seminar Hiro mentioned that one can view Frobenius map in positive characteristic as a stable homotopy theory phenomena. In my talk I will explain what this statement really means and why it turns out to be a purely “spectral” phenomena which does not exist on the level of chain complexes. As an application, I will define topological Hochshild homology of commutative rings with the cyclotomic structure on it and hopefully explain its relevance to arithmetic algebraic geometry.

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