Very smooth points of spaces of operators

Details Very smooth points of spaces of operators Very smooth points of spaces of operators

2003-12-05

arxiv.org/abs/math/0312116v1

Proc. Indian Acad. Sci. (Math. Sci.), Vol. 113, No. 1, February 2003, pp. 53-64

Mathematics

Functional Analysis

12 pages, no figures, no tables

Scientific paper

In this paper we study very smooth points of Banach spaces with special emphasis on spaces of operators. We show that when the space of compact operators is an $M$-ideal in the space of bounded operators, a very smooth operator $T$ attains its norm at a unique vector $x$ (up to a constant multiple) and $T(x)$ is a very smooth point of the range space. We show that if for every equivalent norm on a Banach space, the dual unit ball has a very smooth point then the space has the Radon--Nikod\'{y}m property. We give an example of a smooth Banach space without any very smooth points.

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