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Boundedness of the Adams summand

Hot Topics: Life after the Telescope Conjecture December 09, 2024 - December 13, 2024

December 10, 2024 (11:00 AM PST - 12:00 PM PST)
Speaker(s): Christian Ausoni (Université de Paris XIII (Paris-Nord))
Location: SLMath: Eisenbud Auditorium, Online/Virtual
Primary Mathematics Subject Classification No Primary AMS MSC
Secondary Mathematics Subject Classification No Secondary AMS MSC
Video

Boundedness of the Adams summand

Abstract

This talk will explain the theorem, by Ausoni–Rognes, that V (2)∗TR(l) is bounded for primes p > 3. (The speaker may assume that p > 5, so that V (2) exists as a homotopy commutative and associative ring, or alternatively may make use of the motivic spectral sequence.) Here, l = BP⟨1⟩ is the Adams summand of p-local complex K-theory. This was
the first example of a higher height Lichtenbaum–Quillen theorem, and the speaker will also explain how to deduce chromatic redshift. 

The computations going into the Ausoni–Rognes result will be explained explicitly enough that they may be adapted to compute V (2)∗ TC(lhpkZ) on Thursday (speakers may want to coordinate these two talks).

Suggested references: [AR02], [HRW22] and [BHLS23, §6 & 7]

Supplements
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Video/Audio Files

Boundedness of the Adams summand

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