Recommended Citation
Published in Transactions of the American Mathematical Society, Volume 278, Issue 1, July 1, 1983, pages 361-368.
The definitive version is available at https://doi.org/10.1090/S0002-9947-1983-0697080-X.
Disciplines
Mathematics
Copyright
Publisher statement
This article was first published in Transactions of the American Mathematical Society, published by the American Mathematical Society.
URL: https://digitalcommons.calpoly.edu/math_fac/37