Quasi-pseudometric properties of the Nikodym-Saks space
Author(s) -
Jesús Ferrer
Publication year - 2003
Publication title -
applied general topology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.638
H-Index - 13
eISSN - 1989-4147
pISSN - 1576-9402
DOI - 10.4995/agt.2003.2029
Subject(s) - mathematics , measure (data warehouse) , space (punctuation) , metric space , quotient , metric (unit) , discrete mathematics , pure mathematics , field (mathematics) , computer science , data mining , operations management , economics , operating system
For a non-negative finite countably additive measure μ defined on the σ-field Σ of subsets of Ω, it is well known that a certain quotient of Σ can be turned into a complete metric space Σ (Ω), known as the Nikodym-Saks space, which yields such important results in Measure Theory and Functional Analysis as Vitali-Hahn-Saks and Nikodym's theorems. Here we study some topological properties of Σ (Ω) regarded as a quasi-pseudometric space
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