Fubini's theorem in codimension two
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We classify codimension two complex submanifolds of projective space X n ⊂ having the property that any line through a general point x ∈ X having contact to order two with X at x automatically has contact to order three. We give applications to the study of the Debarre-de Jong conjecture and of varieties whose Fano variety of lines has dimension 2n - 4. © Walter de Gruyter Berlin · New York 2009.
author list (cited authors)
Landsberg, J. M., & Robles, C.