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pro vyhledávání: '"Aleksander Cieślak"'
Autor:
Aleksander Cieślak, Robert Rałowski
In this article we will investigate nonmeasurability with respect to some $\sigma$-ideals in Polish space $X,$ of images of subsets of $X$ by selected mappings defined on the space $X$. Among of them we answer the following question: "It is true that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::efc7dd93b8c20c686216473291812188
Autor:
Aleksander Cieślak, Marcin Michalski
Publikováno v:
Bulletin of the Polish Academy of Sciences Mathematics. 66:157-166
In this paper we consider a notion of universal sets for ideals. We show that there exist universal sets of minimal Borel complexity for classic ideals like null subsets of $2^\omega$ and meager subsets of any Polish space, and demonstrate that the e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4a5c83b0b2cef8d2da4c5c51b9f21cbf
https://doi.org/10.4064/ba8146-5-2018
https://doi.org/10.4064/ba8146-5-2018
