Document Type

Article

Publication Date

2-1962

Notes/Citation Information

Published in Canadian Journal of Mathematics, v. 14, p. 540-551.

© 1962 Canadian Mathematical Society

The copyright holder has granted the permission for posting the article here.

Digital Object Identifier (DOI)

http://dx.doi.org/10.4153/CJM-1962-045-8

Included in

Mathematics Commons

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