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math.NT2007★ 2 cited
N-systems, class polynomials for double eta-quotients and singular values of J-invariant function
Shunsuke Yoshimura, Aya Comuta, Noburo Ishii
Enge and Schertz gave the method of using the double eta-quotient for the construction of elliptic curves over finite fields. In their method, it is necessary to count the number o…
math.NT2005
Representation of modular invariant function by generators of a modular function field
Noburo Ishii
We give a method of representing the modular invariant function by generators of a modular function field.