(Subscript[z, 1]^2 - Subscript[z, 2]^2)^2 JacobiDS[w[Subscript[z, 1]] + w[Subscript[z, 2]], m]^4 - 2 (Subscript[z, 2]^2 Subscript[z, 1]^4 + (Subscript[z, 2]^4 + (4 m - 2) Subscript[z, 2]^2 + (m - 1) m) Subscript[z, 1]^2 + (m - 1) m Subscript[z, 2]^2) JacobiDS[w[Subscript[z, 1]] + w[Subscript[z, 2]], m]^2 + ((m - 1) m - Subscript[z, 1]^2 Subscript[z, 2]^2)^2 == 0 /; w[z] == InverseJacobiDS[z, m]

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2001-10-29