ON PROJECTIVE MANIFOLDS SWEPT OUT BY CUBIC VARIETIES
نویسندگان
چکیده
منابع مشابه
Lines on Projective Varieties
I prove two theorems: Let X ⊂ P be a hypersurface and let x ∈ X be a general point. If the set of lines having contact to order k with X at x is of dimension greater than expected, then the lines having contact to order k are actually contained in X. A variety X is said to be covered by lines if there exist a finite number of lines in X passing through a general point. Let X ⊂ P be a variety co...
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ژورنال
عنوان ژورنال: International Journal of Mathematics
سال: 2012
ISSN: 0129-167X,1793-6519
DOI: 10.1142/s0129167x12500589