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Blaschke curvature and rank of webs in $$\mathbb C^ 2$$. (Sur la courbure de Blaschke et le rang des tissus de $$\mathbb C^ 2$$.) (French) Zbl 1044.32505

##### MSC:
 32S65 Singularities of holomorphic vector fields and foliations 37F75 Dynamical aspects of holomorphic foliations and vector fields 53A60 Differential geometry of webs