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Polynôme d’Alexander<br />

Notation<br />

Soit S ⊂ R 3 une surface de Seifert, ∂S = L, et soit<br />

θ : H 1 (S) × H 1 (S) → Z la forme de Seifert, θ(a, b) = lk(a ↓ , b ↑ ).<br />

∆(L) := det(q − θ ∗ − q + θ) ∈ Z[q ± ] est le polynôme d’Alexander.

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