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SUMMARY:Allen Yuan
DTSTART:20210413T160000Z
DTEND:20210413T170000Z
DTSTAMP:20260423T021350Z
UID:eAKTS/18
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/eAKTS/18/">E
 xamples of chromatic redshift</a>\nby Allen Yuan as part of electronic Alg
 ebraic K-theory Seminar\n\nLecture held in 979 0634 7355.\n\nAbstract\nOne
  form of the Ausoni-Rognes chromatic redshift philosophy\nis that algebrai
 c K-theory raises the chromatic complexity of a ring\nby one.  Work of Cla
 usen-Mathew-Naumann-Noel shows\, in particular\,\nthat K-theory raises hei
 ght by at most one\; on the other hand\, recent\nwork of Hahn-Wilson gives
  an example at each height (a form of $BP\\langle n\\rangle$)\nwhere this 
 height shifting does occur.  In this talk\, I will discuss a\nsimple non-c
 omputational proof of this height shifting in a range of\nexamples\, inclu
 ding Lubin-Tate theories and the iterated K-theory of\nfields.\n
LOCATION:https://researchseminars.org/talk/eAKTS/18/
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