Note on the Jacobian condition and the non-proper value set
Nguyen Van Chau
Annales Polonici Mathematici, Tome 83 (2004), p. 203-210 / Harvested from The Polish Digital Mathematics Library
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We show that the non-proper value set of a polynomial map (P,Q): ℂ² → ℂ² satisfying the Jacobian condition detD(P,Q) ≡ const ≠ 0, if non-empty, must be a plane curve with one point at infinity.

Publié le : 2004-01-01
EUDML-ID : urn:eudml:doc:281080 
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Nguyen Van Chau. Note on the Jacobian condition and the non-proper value set. Annales Polonici Mathematici, Tome 83 (2004) pp. 203-210. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-ap84-3-2/