PlanetMath (more info)
 Math for the people, by the people.
Encyclopedia | Requests | Forums | Docs | Wiki | Random | RSS  
Login
create new user
name:
pass:
forget your password?
Main Menu
Owner confidence rating: High Entry average rating: Very high
Polish space (Definition)

A Polish space is a topological space that is homeomorphic to some complete separable metric space.

Equivalently, a topological space is a Polish space if it is separable and completely metrizable.

Examples of Polish spaces are the euclidean space $ \mathbb{R}^n$ (with the usual topology), the Cantor space, and the Baire space.



"Polish space" is owned by Koro.
(view preamble)

View style:

Log in to rate this entry.
(view current ratings)

Cross-references: Cantor space, usual topology, Euclidean space, completely metrizable, metric space, separable, complete, homeomorphic, topological space
There are 3 references to this entry.

This is version 2 of Polish space, born on 2005-01-31, modified 2007-11-30.
Object id is 6693, canonical name is PolishSpace.
Accessed 2511 times total.

Classification:
AMS MSC54E50 (General topology :: Spaces with richer structures :: Complete metric spaces)

Pending Errata and Addenda
None.
[ View all 1 ]
Discussion
Style: Expand: Order:
forum policy

No messages.

Interact
post | correct | update request | add derivation | add example | add (any)