
doi: 10.2307/2374921
Dans \(\mathbb{C}^n\), soient \(X\) un continu dont la mesure de Hausdorff linéaire est finie (de sorte que \(X\) est connexe par arcs) et \(\widehat X\) l'enveloppe polynomiale de \(X\); selon \textit{H. Alexander} [Am. J. Math. 93, 65-74 (1971; Zbl 0221.32011) et ibid. 110, No. 4, 629-641 (1988; Zbl 0659.32017)], \(\widehat X \backslash X\) est un ensemble analytique de dimension 1 en chacun de ses points, qui est irréductible si \(X\) est une courbe de Jordan rectifiable. On montre ici que: 1) le nombre des composantes irréductibles de \(\widehat X \backslash X\) est au plus égal au rang du groupe abelien \(\check H^1 (X, \mathbb{Z})\); 2) si \(f\) est une application holomorphe, bornée et propre, du disque unité ouvert \(U\) dans \(\mathbb{C}^n \backslash X\), alors \(f' \in H^1 (U)\); 3) si \(X\) est une courbe de Jordan rectifiable, on a entre courants la relation de Stokes \(d[\widehat X\backslash X] = [X]\) moyennant une orientation convenable de \(X\).
rectifiable curves, polynomial hull, Polynomial convexity, rational convexity, meromorphic convexity in several complex variables
rectifiable curves, polynomial hull, Polynomial convexity, rational convexity, meromorphic convexity in several complex variables
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