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Some remarks on reflection cardinals

Prelegent(ci)
Menachem Magidor
Afiliacja
Uniwersytet Hebrajski w Jerozolimie
Termin
9 października 2013 17:00
Pokój
p. 5050
Seminarium
Seminarium „Topologia i teoria mnogości”

A cardinal \kappa is said to be a reflection cardinal for a property of a mathematical structure if every structure (in the appropriate signature) has substructure of cardinality less than \kappa having the given property. In the talk we shall survey some results characterizing the possible reflection cardinals for different properties. There will be some very interesting open problems.