The Arithmetic of Elliptic Curves
《The Arithmetic of Elliptic Curves》 · 第 444 页 · Appendix C，Section 14「Tate Curves」
Consider the elliptic curve $E_q:y^2+xy=x^3+a_4x+a_6$, whose coefficients are given by power series in $\mathbb Z[[q]]$. […] The curve $E_q$ is called the Tate curve.