Strictly Positive Definite Functions
โ
Kuei-Fang Chang
๐
Article
๐
1996
๐
Elsevier Science
๐
English
โ 490 KB
We give a complete characterization of the strictly positive definite functions on the real line. By Bochner's theorem, this is equivalent to proving that if the separated sequence of real numbers [a n ] describes the points of discontinuity of a distribution function, there exists an almost periodi