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too complicated to be written here. Click on the link to download a text file. |
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on both curves : X(5), X(13), X(14), X(15), X(16), X(17), X(18) on K1210a : X(5318), X(40693), X(42140), X(42143) on K1210b : X(5321), X(40694), X(42141), X(42146) |
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Geometric properties : |
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K1210a and K1210b are the KHO-cubics with respective KHO-equations : 3 x^3 + x^2 (18 y - 25 z) - 3 x (3 y^2 - 2 y z + z^2) - (y - z) (12 y^2 + 13 y z + 25 z^2) = 0 3 x^3 - x^2 (18 y - 25 z) - 3 x (3 y^2 - 2 y z + z^2) + (y - z) (12 y^2 + 13 y z + 25 z^2) = 0 |