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SUMMARY:Sanath Devalapurkar (Harvard)
DTSTART:20201012T190000Z
DTEND:20201012T203000Z
DTSTAMP:20260422T220453Z
UID:STAGE/12
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/STAGE/12/">
 Étale fundamental groups</a>\nby Sanath Devalapurkar (Harvard) as part of
  STAGE\n\n\nAbstract\nMotivated by topological considerations\, one can de
 fine an algebraic analogue of the fundamental group\, called the etale fun
 damental group. We will give a definition (via the abstract theory of Galo
 is categories from SGA)\, and review some basic calculations.\n\nReference
 s: <a href="https://www.jmilne.org/math/CourseNotes/LEC.pdf">Milne\, Lectu
 res on étale cohomology</a>\, Chapter 3\; and/or <a href="https://math.mi
 t.edu/~poonen/papers/Qpoints.pdf">Poonen\, Rational points on varieties</a
 >\, Sections 3.5.9 and 3.5.11.\n
LOCATION:https://researchseminars.org/talk/STAGE/12/
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