Abstract
The characterization of bounded approximation properties defined by arbitrary operator ideals due to Oja is extended to bounded convex approximation properties. As an application, it is shown that the unique extension property of a Banach space X enables to lift the metric convex approximation property from a Banach space X to its dual space X*.
Similar content being viewed by others
References
N. Dunford and J.T. Schwartz, Linear Operators. Part 1: General Theory, Wiley-Interscience, New York, 1958.
T. Figiel, W.B. Johnson, and A. Pełczyński, Some approximation properties of Banach spaces and Banach lattices, Israel J. Math. 183 (2011), 199–231.
Godefroy G., Saphar P.D.: Normes lisses et propriété d’approximation métrique. C. R. Acad. Sci. Paris Sér. I Math. 299, 753–756 (1984)
Godefroy G., Saphar P.D.: Duality in spaces of operators and smooth norms on Banach spaces. Illinois J. Math. 32, 672–695 (1988)
Johnson W.B., Oikhberg T.: Separable lifting property and extensions of local reflexivity. Illinois J. Math. 45, 123–137 (2001)
Lissitsin A., Mikkor K., Oja E.: Approximation properties defined by spaces of operators and approximability in operator topologies. Illinois J. Math. 52, 563–582 (2008)
Lissitsin A., Oja E.: The convex approximation property of Banach spaces. J. Math. Anal. Appl. 379, 616–626 (2011)
Oja E.: Lifting bounded approximation properties from Banach spaces to their dual spaces. J. Math. Anal. Appl. 323, 666–679 (2006)
Oikhberg T., Rosenthal H.P.: Extension properties for the space of compact operators. J. Funct. Anal. 179, 251–308 (2001)
Oja E., Treialt S.: Some duality results on bounded approximation properties of pairs. Studia Math. 217, 79–94 (2013)
Oja E., Veidenberg S.: Lifting convex approximation properties from Banach spaces to their dual spaces and the related local reflexivity. J. Math. Anal. Appl. 436, 729– (2016)
H.H. Schaefer and M.P. Wolff, Topological Vector Spaces, Springer, New York, 1999.
Zolk I.: The Johnson–Schechtman space has the 6-bounded approximation property. J. Math. Anal. Appl. 358, 493–495 (2009)
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Veidenberg, S. A characterization of bounded convex approximation properties. Arch. Math. 107, 523–529 (2016). https://doi.org/10.1007/s00013-016-0952-9
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00013-016-0952-9