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About the equation of degree three. (Sur l’équation du 3. degré.) (French) JFM 02.0276.03

Nouv. Ann. (2) IX. 529-530. 1870 (1870).
Wenn \(a^2 (p^2 - 3q) + a(pq - qr) + q^2 - 3pr = 0\) ist, so wird \(x^3 + px^2 + qx + r = 0\) für \[ 3x + p = \root3\of{(p^2 - 3q)(3a+p)} - \frac{p^2 - 3q}{\root3\of{(p^2 -3q)(3a + p)}}. \]

MSC:

12E12 Equations in general fields
14H99 Curves in algebraic geometry