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SUMMARY:Christina Brech (Universidade de São Paulo)
DTSTART:20210617T180000Z
DTEND:20210617T190000Z
DTSTAMP:20260423T035939Z
UID:OLS/56
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/OLS/56/">Iso
 morphic combinatorial families</a>\nby Christina Brech (Universidade de S
 ão Paulo) as part of Online logic seminar\n\n\nAbstract\nWe will recall t
 he notion of compact and hereditary families of finite subsets of some car
 dinal κ and their corresponding combinatorial Banach spaces. We present a
  combinatorial version of Banach-Stone theorem\, which leads naturally to 
 a notion of isomorphism between families. Our main result shows that diffe
 rent families on ω are not isomorphic\, if we assume them to be spreading
 . We also discuss the difference between the countable and the uncountable
  setting. This is a joint work with Claribet Piña.\n
LOCATION:https://researchseminars.org/talk/OLS/56/
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