Publications Meetings The Profession Membership Programs Math Samplings Policy & Advocacy In the News About the AMS

   
Mobile Device Pairing
Green Open Access
Proceedings of the American Mathematical Society
Proceedings of the American Mathematical Society
ISSN 1088-6826(online) ISSN 0002-9939(print)

 

On the characterization of Souslin and Borel sets


Author: R.-D. Reiss
Journal: Proc. Amer. Math. Soc. 53 (1975), 530-534
MSC: Primary 54H05; Secondary 04A15
MathSciNet review: 0385827
Full-text PDF Free Access

Abstract | References | Similar Articles | Additional Information

Abstract: Let $ \mathfrak{X}$ be an arbitrary family of sets in the basic set $ X$. In this paper Souslin- $ \mathfrak{X}$ sets are represented as projections on $ X$ of certain $ \sigma \delta $-sets in the cartesian product space of $ X$ and the Baire space (or $ X$ and the real line). For $ L{\text{ - }}\mathfrak{X}$ sets (i.e. Souslin sets defined with disjoint unions; ensembles d'unicité) injective projections are considered. The results also apply to Borel- $ \mathfrak{X}$ sets since the system of $ L{\text{ - }}\mathfrak{X}$ sets includes the Borel- $ \mathfrak{X}$ sets under suitable conditions.


References [Enhancements On Off] (What's this?)


Similar Articles

Retrieve articles in Proceedings of the American Mathematical Society with MSC: 54H05, 04A15

Retrieve articles in all journals with MSC: 54H05, 04A15


Additional Information

DOI: http://dx.doi.org/10.1090/S0002-9939-1975-0385827-2
PII: S 0002-9939(1975)0385827-2
Keywords: Souslin sets, Borel sets, $ \sigma \delta $-sets, injective projections
Article copyright: © Copyright 1975 American Mathematical Society