Polynomials associated with reciprocation
Journal of integer sequences, Tome 12 (2009) no. 3
Polynomials are defined recursively in various ways associated with reciprocation; e.g., $S_{n+1}(x)/T_{n+1}(x) = S_{n}(x)/T_{n}(x) \pm T_{n}(x)/S_{n}(x)$. Under certain conditions, the zeros of $S_{n}$ interlace those of $T_{n}$. Identities for $S_{n}, T_{n}$ and related polynomials are derived, as well as recurrence relations and infinite sums involving roots of polynomials.
Kimberling, Clark. Polynomials associated with reciprocation. Journal of integer sequences, Tome 12 (2009) no. 3. http://geodesic.mathdoc.fr/item/JIS_2009__12_3_a0/
@article{JIS_2009__12_3_a0,
author = {Kimberling, Clark},
title = {Polynomials associated with reciprocation},
journal = {Journal of integer sequences},
year = {2009},
volume = {12},
number = {3},
zbl = {1258.11053},
language = {en},
url = {http://geodesic.mathdoc.fr/item/JIS_2009__12_3_a0/}
}