Skip to Main Content

Proceedings of the American Mathematical Society

Published by the American Mathematical Society since 1950, Proceedings of the American Mathematical Society is devoted to shorter research articles in all areas of pure and applied mathematics.

ISSN 1088-6826 (online) ISSN 0002-9939 (print)

The 2020 MCQ for Proceedings of the American Mathematical Society is 0.85.

What is MCQ? The Mathematical Citation Quotient (MCQ) measures journal impact by looking at citations over a five-year period. Subscribers to MathSciNet may click through for more detailed information.

 

Strongly exposed points in Lebesgue-Bochner function spaces
HTML articles powered by AMS MathViewer

by Zhibao Hu and Bor-Luh Lin PDF
Proc. Amer. Math. Soc. 120 (1994), 1159-1165 Request permission

Abstract:

It is a result of Peter Greim that if $f$ is a strongly exposed point of the unit ball of Lebesgue-Bochner function space ${L^p}(\mu ,X),\;1 < p < \infty$, then $f$ is a unit vector and $f(t)/||f(t)||$ is a strongly exposed point of the unit ball of $X$ for almost all $t$ in the support of $f$. We prove that the converse is also true.
References
  • J. Diestel and J. J. Uhl Jr., Vector measures, Mathematical Surveys, No. 15, American Mathematical Society, Providence, R.I., 1977. With a foreword by B. J. Pettis. MR 0453964
  • Giovanni Emmanuele and Alfonso Villani, Lifting of rotundity properties from $E$ to $L^p(\mu , E)$, Rocky Mountain J. Math. 17 (1987), no. 3, 617–627. MR 908268, DOI 10.1216/RMJ-1987-17-3-617
  • P. Greim, Strongly exposed points in Bochner ${L^p}$-spaces, Proc. Amer. Math. Soc. 88 (1983), 81-84. —, A note on strong extreme and strongly exposed points in Bochner ${L^p}$-spaces, Proc. Amer. Math. Soc. 93 (1985), 65-66. A. Ionescu Tulcea and C. Ionescu Tulcea, Topics in the theory of lifting, Springer-Verlag, New York, 1969. J. A. Johnson, Strongly exposed points in ${L^p}(\mu ,X)$, Rocky Mountain J. Math. 10 (1980), 517-519. M. Smith, Rotundity and extremity in ${l^p}({X_i})$ and ${L^p}(\mu ,X)$, Contemp. Math., vol. 52, Amer. Math. Soc., Providence, RI, 1983, pp. 143-162.
Similar Articles
  • Retrieve articles in Proceedings of the American Mathematical Society with MSC: 46E40, 46B20
  • Retrieve articles in all journals with MSC: 46E40, 46B20
Additional Information
  • © Copyright 1994 American Mathematical Society
  • Journal: Proc. Amer. Math. Soc. 120 (1994), 1159-1165
  • MSC: Primary 46E40; Secondary 46B20
  • DOI: https://doi.org/10.1090/S0002-9939-1994-1176069-3
  • MathSciNet review: 1176069