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Quasi-Differentiable Norms

Published online by Cambridge University Press:  20 November 2018

J. H. M. Whitfield*
Affiliation:
Lakehead University
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Let E be a real Banach space with norm ρ. Let S={xE: ρ(x) = 1}. A norm on E is admissible if it generates the same topology as ρ.

The normρ is Gateaux differ-entiable if for each xS and uE

exists.

Type
Research Article
Copyright
Copyright © Canadian Mathematical Society 1974

References

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3. Day, M. M., Normed Linear Spaces, Academic Press, New York, 1962. (1964), 284-314.Google Scholar
4. Goodman, V., Quasi-differentiable functions on Banach spaces, Proc. Amer. Math. Soc. 30 (1971), 367-370.Google Scholar