Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: Perfect isomorphism

Sortuj według:

Ogranicz wyniki do:

On the structure of perfect sets in various topologies associated with tree forcings

100%

Nowik A., Reardon P.

Open Mathematics

2013

tom 11

nr 3

509-518

We prove that the Ellentuck, Hechler and dual Ellentuck topologies are perfect isomorphic to one another. This shows that the structure of perfect sets in all these spaces is the same. We prove this by finding homeomorphic embeddings of one space into a perfect subset of another. We prove also that the space corresponding to eventually different forcing cannot contain a perfect subset homeomorphic to any of the spaces above.

Ograniczanie wyników

1 Open Mathematics

1 Nowik A.

1 Reardon P.

1 2013

Wyniki wyszukiwania

On the structure of perfect sets in various topologies associated with tree forcings