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The Banach-Saks Theorem in C(S)

Published online by Cambridge University Press:  20 November 2018

Nicholas R. Farnum*
Affiliation:
University of California, Irvine, Irvine, California
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A Banach space X has the Banach-Saks property if every sequence (xn) in X converging weakly to x has a subsequence (xnk) with (1/pk=1xnk converging in norm to x. Originally, Banach and Saks [2] proved that the spaces Lp (p > 1) have this property. Kakutani [4] generalized their result by proving this for every uniformly convex Banach space, and in [9] Szlenk proved that the space L1 also has this property.

Type
Research Article
Copyright
Copyright © Canadian Mathematical Society 1974

References

1. Baernstein, A., On reflexivity and summability, Studia Math. 42 (1972), 9194.Google Scholar
2. Banach, et Saks, , Sur la convergence for te dans les champs Lp , Studia Math. 2 (1930), 5157.Google Scholar
3. Dunford, N. and Schwartz, J. T., Linear operators (Interscience, New York-London, 1967).Google Scholar
4. Kakutani, S., Weak convergence in uniformly convex spaces, Tôhoku Math. J. 45 (1938), 188193.Google Scholar
5. Nishiura, T. and D. Waterman, Reflexivity and summability, Studia Math. 23 (1963), 5357.Google Scholar
6. Schreier, J., Ein Gegenbeispiel zur Théorie der schwachen Konvergenz, Studia Math. 2 (1930), 5862.Google Scholar
7. Sierpinski, W., General topology (University of Toronto Press, Toronto, 1961).Google Scholar
8. Singer, I., A remark on reflexivity and summability, Studia Math. 26 (1965), 113114.Google Scholar
9. Szlenk, W., Sur les suites faiblement convergentes dans l'espace L, Studia Math. 25 (1965), 337341.Google Scholar
10. Waterman, D., Reflexivity and summability. II, Studia Math. 82 (1969), 6163.Google Scholar