Functions which operate on positive definite functions
Published online by Cambridge University Press: 24 October 2008
Extract
1. Introduction. Let P be a collection of functions mapping some set into the complex plane C and let δ be a subset of C. A function F: δ → C is said to operate on P provided the composition F o φ belongs to P whenever φ ∈ P and the range of φ is contained in δ. The basic problem is to characterize the functions which operate.
- Type
- Research Article
- Information
- Mathematical Proceedings of the Cambridge Philosophical Society , Volume 69 , Issue 1 , January 1971 , pp. 87 - 97
- Copyright
- Copyright © Cambridge Philosophical Society 1971
References
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