Hostname: page-component-78c5997874-g7gxr Total loading time: 0 Render date: 2024-11-13T07:04:00.332Z Has data issue: false hasContentIssue false

Some examples concerning normal and uniform normal structure in Banach spaces

Published online by Cambridge University Press:  09 April 2009

Mark A. Smith
Affiliation:
Miami University, Oxford, Ohio 45056, U.S.A.
Barry Turett
Affiliation:
Oakland University, Rochester, Michigan 48309, U.S.A.
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Examples are given that show the following: (1) normal structure need not be inherited by quotient spaces; (2) uniform normal structure is not a self-dual property; and (3) no degree of k–uniform rotundity need be present in a space with uniform normal structure.

Type
Research Article
Copyright
Copyright © Australian Mathematical Society 1990

References

[1]Amir, D., ‘On Jung's constant and related constants in normed linear spaces’, (Longhorn Notes, The University of Texas at Austin, 19821983, pp. 143159).Google Scholar
[2]Banach, S. and Mazur, S., ‘Zur theorie der linearen dimension’, Studia Math. 4 (1933), 100112.CrossRefGoogle Scholar
[3]Brodskii, M. S. and Milman, D. P., ‘On the center of a convex set’, Dokl. Akad. Nauk SSSR 59 (1948), 837840.Google Scholar
[4]Bynum, W. L., ‘A class of spaces lacking normal structure’, Compositio Math. 25 (1972), 233236.Google Scholar
[5]Clarkson, J. A., ‘Uniformly convex spaces’, Trans. Amer. Math. Soc. 40 (1936), 396414.CrossRefGoogle Scholar
[6]Day, M. M., Normed linear spaces (3rd ed., Ergebnisse der Mathematik und ihrer Grenzgebiete, Band 21, Springer-Verlag, New York, 1973).CrossRefGoogle Scholar
[7]Downing, D. J. and Turett, B., ‘Some properties of the characteristic of convexity relating to fixed point theory’, Pacific J. Math. 104 (1983), 343350.CrossRefGoogle Scholar
[8]Geremia, R. and Sullivan, F., ‘Multi-dimensional volumes and moduli of convexity in Banach spaces’, Ann. Mat. Pura Appl. (4) 127 (1981), 231251.CrossRefGoogle Scholar
[9]Gillespie, A. A. and Williams, B. B., ‘Fixed points for nonexpansive mappings on Banach spaces with uniformly normal structure’, Applicable Anal. 9 (1979), 121124.CrossRefGoogle Scholar
[10]Sims, B., The existence question for fixed points of nonexpansive maps (Kent State Seminar Notes, Spring 1986).Google Scholar
[11]Sullivan, F., ‘A generalization of uniformly rotund Banach spaces’, Canad. J. Math. 31 (1979), 628636.CrossRefGoogle Scholar
[12]Zizler, V., ‘One theorem on rotundity and smoothness of separable Banach spaces’, Comment. Math. Univ. Carolin. 9 (1968), 637640.Google Scholar
[13]Zizler, V., ‘On some rotundity and smoothness properties of Banach space’, Dissertationes Math. (Rozprawy Mat.) 87 (1971).Google Scholar