Hostname: page-component-cd9895bd7-p9bg8 Total loading time: 0 Render date: 2024-12-23T02:17:22.264Z Has data issue: false hasContentIssue false

Cancellative medial groupoids and arithmetic means

Published online by Cambridge University Press:  17 April 2009

T. Howroyd
Affiliation:
Department of Mathematics, University of New Brunswick, Fredericton, New Brunswick, Canada.
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.

It is shown that a homomorphism from a commutative, idempotent and medial groupoid with a reducible set of generators into another medial groupoid may be characterized by certain simultaneous equations. This result is used to characterize the arithmetic mean without introducing either continuity or order.

Type
Research Article
Copyright
Copyright © Australian Mathematical Society 1973

References

[1]Aczél, J., “On mean values”, Bull. Amer. Math. Soc. 54 (1948), 392400.CrossRefGoogle Scholar
[2]Fuchs, L., “On mean systems”, Acta Math. Acad. Sci. Hungar. 1 (1950), 303320.CrossRefGoogle Scholar
[3]Kolmogoroff, A., “Sur la notion de la moyenne”, Atti. Acad. Naz. Lincei Rend. (6) 12 (1930), 388391.Google Scholar
[4]Nagumo, M., “Über eine Klasse der Mittelwerte”, Japan J. Math. 7 (1930), 7179.CrossRefGoogle Scholar
[5]Sigmon, Kermit, “Cancellative medial means are arithmetic”, Duke Math. J. 37 (1970), 439445.CrossRefGoogle Scholar
[6]Soublin, Jean-Pierre, “Étude algébrique de la notion de moyenne”, J. Math. Pures Appl. (9) 50 (1971), 53264.Google Scholar