EVALUATIONS OF THE ROGERS-RAMANUJAN CONTINUED FRACTION BY THETA-FUNCTION IDENTITIES
Journal of the Korean Society of Mathematical Education Series B: The Pure and Applied Mathematics / Journal of the Korean Society of Mathematical Education Series B: The Pure and Applied Mathematics, (P)1226-0657; (E)2287-6081
2021, v.28 no.4, pp.377-386
https://doi.org/https://doi.org/10.7468/jksmeb.2021.28.4.377
Paek, Dae Hyun
Paek,,
D.
H.
(2021). EVALUATIONS OF THE ROGERS-RAMANUJAN CONTINUED FRACTION BY THETA-FUNCTION IDENTITIES. Journal of the Korean Society of Mathematical Education Series B: The Pure and Applied Mathematics, 28(4), 377-386, https://doi.org/https://doi.org/10.7468/jksmeb.2021.28.4.377
Abstract
In this paper, we use theta-function identities involving parameters 𝑙<sub>5,n</sub>, 𝑙'<sub>5,n</sub>, and 𝑙'<sub>5,4n</sub> to evaluate the Rogers-Ramanujan continued fractions <TEX>$R(e^{-2{\pi}{\sqrt{n/20}}})$</TEX> and <TEX>$S(e^{-{\pi}{\sqrt{n/5}}})$</TEX> for some positive rational numbers n.
- keywords
-
theta-function,
modular equation,
theta-function identity,
Rogers-Ramanujan continued fraction