Evaluations of the Rogers-Ramanujan continued Fraction by Theta-function Identities Revisited
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
2022, v.29 no.3, pp.245-254
https://doi.org/https://doi.org/10.7468/jksmeb.2022.29.3.245
Yi, Jinhee
Paek, Dae Hyun
Yi,,
J.
, &
Paek,,
D.
H.
(2022). Evaluations of the Rogers-Ramanujan continued Fraction by Theta-function Identities Revisited. Journal of the Korean Society of Mathematical Education Series B: The Pure and Applied Mathematics, 29(3), 245-254, https://doi.org/https://doi.org/10.7468/jksmeb.2022.29.3.245
Abstract
In this paper, we use some theta-function identities involving certain parameters to show how to evaluate Rogers-Ramanujan continued fraction R(<TEX>$e^{-2{\pi}\sqrt{n}}$</TEX>) and S(<TEX>$e^{-{\pi}\sqrt{n}}$</TEX>) for <TEX>$n=\frac{1}{5.4^m}$</TEX> and <TEX>$\frac{1}{4^m}$</TEX>, where m is any positive integer. We give some explicit evaluations of them.
- keywords
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theta-function,
modular equation,
theta-function identity,
Rogers-Ramanujan continued fraction