Korean J. Math. Vol. 27 No. 4 (2019) pp.1043-1059
DOI: https://doi.org/10.11568/kjm.2019.27.4.1043

Evaluations of the cubic continued fraction by some theta function identities

Main Article Content

Jinhee Yi
Dae Hyun Paek

Abstract

In this paper, we use some theta function identities involving two parameters $h_{n,k}$ and $h'_{n,k}$ for the theta function $\varphi$ to establish new evaluations of Ramanujan's cubic continued fraction.


Article Details

Supporting Agencies

Korea Science Academy of KAIST with funds from the Ministry of Science and ICT

References

[1] C. Adiga, T. Kim, M. S. Mahadeva Naika, and H. S. Madhusudhan, On Ra- manujan’s cubic continued fraction and explicit evaluations of theta-functions, Indian J. pure appl. Math. 35 (9) (2004), 1047–1062. Google Scholar

[2] C. Adiga, K. R. Vasuki, and M. S. Mahadeva Naika, Some new explicit evaluations of Ramanujan’s cubic continued fraction, New Zealand J. Math. 31 (2002), 109–114. Google Scholar

[3] G. E. Andrews and B. C. Berndt, Ramanujan’s lost notebook, Part I, Springer, 2000. Google Scholar

[4] B. C. Berndt, Ramanujan’s notebooks, Part III, Springer–Verlag, New York, 1991. Google Scholar

[5] B. C. Berndt, Ramanujan’s notebooks, Part IV, Springer–Verlag, New York, 1994. Google Scholar

[6] B. C. Berndt, H. H. Chan, and L.-C. Zhang Ramanujan’s class invariants and cubic continued fraction, Acta Arith. 73 (1995), 67–85. Google Scholar

[7] H. H. Chan, On Ramanujan’s cubic continued fraction, Acta Arith. 73 (1995), 343–355. Google Scholar

[8] D. H. Paek and J. Yi, On some modular equations and their applications II, Bull. Korean Math. Soc. 50 (4) (2013), 1211–1233. Google Scholar

[9] D. H. Paek and J. Yi, On evaluations of the cubic continued fraction by modular equations of degree 9, J. Korean Soc. Math. Educ. Ser. B: Pure Appl. Math. 23 (3) (2016), 223–236. Google Scholar

[10] D. H. Paek and J. Yi, On evaluations of the cubic continued fraction by modular equations of degree 3, J. Korean Soc. Math. Educ. Ser. B: Pure Appl. Math. 25 (1) (2018), 17–29. Google Scholar

[11] K. G. Ramanathan, On Ramanujan’s continued fraction, Acta Arith. 43 (1984), 209–226. Google Scholar

[12] J. Yi, The construction and applications of modular equations, Ph.D. Thesis, University of Illinois at Urbana-Champaign, 2001. Google Scholar

[13] J. Yi, Theta-function identities and the explicit formulas for theta-function and their applications, J. Math. Anal. Appl., 292 (2004), 381–400. Google Scholar

[14] J.Yi,M.G.Cho,J.H.Kim,S.H.Lee,J.M.Yu,andD.H.Paek,Onsome modular equations and their applications I, Bull. Korean Math. Soc. 50 (3) (2013), 761–776. Google Scholar

[15] J. Yi, Y. Lee, and D. H. Paek, The explicit formulas and evaluations of Ramanujan’s theta-function ψ, J. Math. Anal. Appl., 321 (2006), 157–181. Google Scholar