Waldemar Sieg

most citedUniform limits of

B_{1}^{**}

-functions

1 citations · 1 across the 3 of their papers we have counts for

collaborators

3 papers

math.GN2023

Linear extensions of Baire-one and Borel functions

Waldemar Sieg

Let $X$ and $Y$ be the Hausdorff topological spaces and let $A$ be both an $\fs$- and $\gd$- subset of $X$ . Let also $f\cn A\to Y$ be a function for which the inverse image of ever…

math.CA2023

An approximation form of the Kuratowski Extension Theorem for Baire-alpha functions final version

Waldemar Sieg

Let $Ω$ be a perfectly normal topological space, let $A$ be a non-empty $G_{δ}$ -subset of $Ω$ and let $B_{1} (A)$ denote the space of all functions $A \to R$ of Baire-one class o…

math.CA2020★ 1 cited

Uniform limits of $B_{1}^{**}$ -functions

Piotr Sworowski, Waldemar Sieg

We characterise the class of uniform limits of functions from Pawlak's class $B_{1}^{**}$ . The resulting class $u S_{1}$ , which contains functions with the oscillation…

Linear extensions of Baire-one and Borel functions

An approximation form of the Kuratowski Extension Theorem for Baire-alpha functions final version

Uniform limits of B1∗∗​-functions

Uniform limits of $B_{1}^{**}$ -functions