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APPLICATIONS OF THE ICOSAHEDRAL EQUATION FOR THE ROGERS-RAMANUJAN CONTINUED FRACTION

  • John M. Campbell (Department of Mathematics and Statistics Dalhousie University)
  • Received : 2025.12.24
  • Accepted : 2026.05.15
  • Published : 2026.08.01

Abstract

Let R(q) denote the Rogers-Ramanujan continued fraction for |q| < 1. Using expressions involving the theta function f(-q) := (q; q)∞ given in modular relations due to Yi, we introduce evaluations for $R(e^{-{\pi}{\sqrt{r}}})$, for r ∈ ℚ>0. We prove our closed forms using the icosahedral equation for R together with closed forms for and modular relations associated with Ramanujan's G- and g-functions.

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Acknowledgement

This work was financially supported by a Killam Postdoctoral Fellowship from the Killam Trusts.