Positivity problem of three-term recurrence sequences
- Resource Type
- Working Paper
- Authors
- Pei, Yanni; Wang, Yaling; Wang, Yi
- Source
- Subject
- Mathematics - Combinatorics
- Language
We present some necessary and/or sufficient conditions for the positivity problem of three-term recurrence sequences. As applications we show the positivity of diagonal Taylor coefficients of some rational functions in a unified approach. We also establish a criterion for the positivity and log-convexity of such sequences.
Comment: 13 pages