| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 4620703 | Journal of Mathematical Analysis and Applications | 2008 | 8 Pages |
Abstract
Let E be a subset of R. We say that is an E-Pólya frequency function if the kernel f(u−x) is totally positive on E×R and f is integrable on R. In this paper, we show that under some conditions on E, an E-Pólya frequency function is a Pólya frequency function. This strengthens Schoenberg's result on Pólya frequency functions.
Related Topics
Physical Sciences and Engineering
Mathematics
Analysis
