In mathematics, the Kuratowski–Ulam theorem, introduced by Kazimierz Kuratowski and Stanislaw Ulam (1932), called also the Fubini theorem for category, ...

Abstract. Fubini's theorem has a category analogue. In its general formulation, this theorem was proved in 1932 by Kuratowski and Ulam [18, p. 222].

Fubini's theorem has a category analogue. In its general formulation, this theorem was proved in 1932 by Kuratowski and Ulam [18, p. 222].

We see that Ay is comeager for all y; by the Kuratowski-Ulam theorem, A is comeager. On the set {0,1}∞ we have the algebra of “elementary” (or “cylindrical”, or ...

Thus, by the Kuratowski–Ulam theorem, every space Y with a countable π-basis is a uK–U space. Note also that every space Y meager in itself is uK–U. The scheme ...

(mathematics) An analog of Fubini's theorem for arbitrary second countable Baire spaces.

A space Y is called a universally Kuratowski-Ulam (uK-U) space if (X,Y) is a Kuratowski-Ulam pair for every space X.

Kuratowski and Ulam proved that (X, Y) is a K-U pair whenever π(Y) < add(M(X)). (See, e.g., [KK] or [JO, Theorem 15.1, p. 56].

17 мая 2006 г. · Abstract: We consider a version of the open-open game, indicating its connections with universally Kuratowski-Ulam spaces.

5 июл. 2022 г. · Let D denote the set of x for which Ex is NOT nowhere dense in R. By the Kuratowski-Ulam Theorem, we know that D is of first cateogory in R. My ...