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A Cosine Functional Equation with Restricted Argument

Published online by Cambridge University Press:  20 November 2018

L. B. Etigson
L. B. Etigson*
Affiliation:
Department of Mathematics, Atkinson College, York University, Downs View, Ontario
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We name a functional equation with restricted argument one in which at least one of the variables is restricted to a certain discrete subset of the domain of the other variable(s). In particular, the subset may consist of a single element.

The purpose of this paper is to present a functional equation satisfied only by cosine functions.

Type
Research Article
Information
Canadian Mathematical Bulletin , Volume 17 , Issue 4 , 01 December 1974 , pp. 505 - 509
Copyright
Copyright © Canadian Mathematical Society 1974

References

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