Products of Perfectly Meager Sets and Lusin's Function

1989 ◽  
Vol 107 (3) ◽  
pp. 811
Author(s):  
Janusz Pawlikowski
Keyword(s):  

2021 ◽  
pp. 1-17
Author(s):  
R. POL ◽  
P. ZAKRZEWSKI
Keyword(s):  


2007 ◽  
Vol 14 (4) ◽  
pp. 661-671
Author(s):  
Jacek Hejduk ◽  
Anna Loranty

Abstract This paper contains some results connected with topologies generated by lower and semi-lower density operators. We show that in some measurable spaces (𝑋, 𝑆, 𝐽) there exists a semi-lower density operator which does not generate a topology. We investigate some properties of nowhere dense sets, meager sets and σ-algebras of sets having the Baire property, associated with the topology generated by a semi-lower density operator.



2013 ◽  
Vol 160 (18) ◽  
pp. 2396-2400 ◽  
Author(s):  
Udayan B. Darji
Keyword(s):  


2016 ◽  
Vol 440 (2) ◽  
pp. 922-939 ◽  
Author(s):  
Martin Doležal ◽  
Martin Rmoutil ◽  
Benjamin Vejnar ◽  
Václav Vlasák
Keyword(s):  


2020 ◽  
Vol 24 (1) ◽  
pp. 63-70
Author(s):  
Andrzej Nowik
Keyword(s):  


2020 ◽  
Vol 52 (4) ◽  
pp. 561-619
Author(s):  
Márton Elekes ◽  
Donát Nagy
Keyword(s):  


2001 ◽  
Vol 130 (4) ◽  
pp. 1189-1195 ◽  
Author(s):  
Tomek Bartoszynski
Keyword(s):  


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