Abstract
We consider a recent result which claims that if the series d(t) and h(t) are Pólya frequency formal power series, then the Riordan array (d(t),h(t)) is totally positive. Namely, we pose and answer the question if the various types of the converse of this claim are also true.
| Original language | English |
|---|---|
| Pages (from-to) | 117-123 |
| Number of pages | 7 |
| Journal | Linear Algebra and Its Applications |
| Volume | 594 |
| DOIs | |
| Publication status | Published - 1 Jun 2020 |
Keywords
- A-sequence
- Pólya frequency formal power series
- Pólya frequency sequence
- Riordan array
- Totally positive matrix
- Z-sequence
ASJC Scopus subject areas
- Algebra and Number Theory
- Numerical Analysis
- Geometry and Topology
- Discrete Mathematics and Combinatorics
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