New modular equations of signature three in the spirit of Ramanujan
Srinivasa Ramanujan recorded many modular equations in his notebooks, which are useful in the computation of class invariants, continued fractions and the values of theta functions. In this paper, we prove some new modular equations of signature three by using theta function identities of composite degrees.
Srivatsa Kumar, B. R. and Shruthi, "New modular equations of signature three in the spirit of Ramanujan" (2020). Open Access Archive. 328.