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Results for choquet game
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2 votes
1 answer
172 views

Question about almost locally ccc and the Krom space

The Banach-Mazur game (or Choquet game) played on $X$ and the Banach-Mazur game played on $\mathcal{K}(X)$ are equivalents. …
Gabriel Medina's user avatar
3 votes

If non-empty player has a winning strategy in Banach-Mazur game BM(X), then it also has in B...

Topological spaces $X$ for which the second player (Non-empty) has a winning strategy in the Banach-Mazur game $BM(X)$ are called weakly $\alpha$-favorable by White and Choquet by Kechris. …
Taras Banakh's user avatar
7 votes
0 answers
169 views

Is each Choquet topological group strong Choquet?

A topological space $X$ is called (strong) Choquet if the player II has a winning strategy in the (strong) Choquet game. … Is each Choquet topological group strong Choquet? …
Taras Banakh's user avatar
11 votes

On Applications of Forcing in Domain Theory

(MR1961398) Martin showed that the space of maximal points of a domain, among other things, has the strong Choquet completeness property. … The problem of characterizing the spaces that are domain representable is still open in the general case, as are various questions about special kinds of winning strategies in the Choquet game. …
Carl Mummert's user avatar
  • 9,683
9 votes
Accepted

How to show that something is not completely metrizable

There is an equivalent condition for complete metrizability in terms of a game known as the Choquet game. … The game is described, for example, in the book Classical Descriptive Set Theory by Kechris, who calls it the strong Choquet game. The game goes like this. …
Carl Mummert's user avatar
  • 9,683
7 votes
2 answers
651 views

Topological tameness beyond the Gandy-Harrington topology

in a certain topological game. … Unfortunately, for $k>1$ the strong Choquet property fails badly in $\tau_k$! My question is: Is there a weakening of the strong Choquet property that holds for $\tau_2$? …
Noah Schweber's user avatar
5 votes

Borel coloring of a graph on the set of all functions $f:\mathbb{N}\to\mathbb{N}$

However, the topology is what's known as strong Choquet (a property based on a certain infinite game), which allows one to carry out something very similar to category arguments. …
Jay Williams's user avatar
8 votes
0 answers
831 views

Intersections of open sets and $\alpha$-favorable spaces

All these classes seem to be somehow related to Choquet game and Baire spaces. … game and Choquet game, similarly as in [K, Chapter 8]. …
Martin Sleziak's user avatar
5 votes

Locally complete space is topologically equivalent to a complete space

The result you want to prove also follows directly from Choquet's characterization of completely metrizable metric spaces as those for which the second player has a winning strategy in the "strong Choquetgame". …
Carl Mummert's user avatar
  • 9,683