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| author | Fabrice (Polytechnique) <Fabrice.Orgogozo+git@gmail.com> | 2012-04-13 12:56:06 +0200 |
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| committer | Fabrice (Polytechnique) <Fabrice.Orgogozo+git@gmail.com> | 2012-04-13 12:56:06 +0200 |
| commit | f6e7d43a0bea65795243339701523bb847502781 (patch) | |
| tree | 6dbdfbf54e3d8c345f61a712bcf13a49174474ae /chapitres/correspondance-galois.tex | |
| parent | c82e6b7e2a03d25d8a57d9d7a2306a7cb82370d8 (diff) | |
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[CG] une formule(discriminant) + un toudou
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diff --git a/chapitres/correspondance-galois.tex b/chapitres/correspondance-galois.tex index 56984df..41427a5 100644 --- a/chapitres/correspondance-galois.tex +++ b/chapitres/correspondance-galois.tex @@ -1503,6 +1503,13 @@ Référence. Bourbaki, V, exercice §10, №23 et \cite{Involutions@KMRT}, chap. \[\japmath{別}_2(f) = \frac{c_1^3 c_3^3 + c_1^2 c_2^3 c_4 + c_1^3 c_2 c_3 c_4 + c_1^4 c_4^2 + c_2^3 c_3^2 + c_1 c_2 c_3^3 + c_3^4}{c_1^2 c_2^2 c_3^2 + c_1^4 c_4^2 + c_3^4}.\] +\item Soit $f=X⁵+aX+b$. +\[ +Δ(f)= 4⁴a⁵+5⁵b⁴. +\] +\[\japmath{別}_2(f) = ...\] +\XXX +Plus généralement si $f=X^n + aX+b$, \XXX \end{enumerate} \end{exemples3} |