Wadge-like reducibilities on ultrametric Polish spaces
- Prelegent(ci)
- Luca Motto Ros
- Afiliacja
- Uniwersytet we Fryburgu
- Termin
- 15 maja 2013 16:15
- Pokój
- p. 5050
- Seminarium
- Seminarium „Topologia i teoria mnogości”
We analyze the reducibilities induced by, respectively, uniformly
continuous, Lipschitz, and nonexpansive functions on arbitrary
ultrametric Polish spaces, and give sufficient and necessary
(topological) conditions on such spaces for the corresponding
degree-structures being well-behaved. If time permits, we will also
briefly discuss how suitable set-theoretic assumptions may influence
the behavior of these hierarchies. This is joint work with P. Schlicht.