Outline of the Course
Part of the Problem Books in Mathematics book series (PBM)
A family A of subsets of a set X is called a σ-ALGEBRA (“sigma algebra”) if Ø є A, and if A is closed under complementation and countable union.
KeywordsApproximate Identity Arithmetic Function Convolution Algebra Vector Space Structure Closed Vector Subspace
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© Springer-Verlag New York Inc. 1984