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SUMMARY:Lauren Wickman (University of Florida)
DTSTART:20220127T190000Z
DTEND:20220127T200000Z
DTSTAMP:20260423T021313Z
UID:OLS/81
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/OLS/81/">Kna
 ster Continua and Projective Fraïssé Theory</a>\nby Lauren Wickman (Univ
 ersity of Florida) as part of Online logic seminar\n\n\nAbstract\nThe Knas
 ter continuum\, also known as the buckethandle\, or the Brouwer–Janiszew
 ski–Knaster continuum can be viewed as an inverse limit of 2-tent maps o
 n the interval. However\, there is a whole class (with continuum many non-
 homeomorphic members) of Knaster continua\, each viewed as an inverse limi
 t of p-tent maps\, where p is a sequence of primes. In this talk\, for eac
 h Knaster continuum K\, we will give a projective Fraïssé class of finit
 e objects that approximate K (up to homeomorphism) and examine the combina
 torial properties of that the class (namely whether the class is Ramsey or
  if it has a Ramsey extension). We will give an extremely amenable subgrou
 p of the homeomorphism group of the universal Knaster continuum.\n
LOCATION:https://researchseminars.org/talk/OLS/81/
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