Zak's theorem on superadditivity
نویسندگان
چکیده
منابع مشابه
Zak’s Theorem on Superadditivity
This paper is concerned with an important theorem due to Fyodor L. Zak, which appeared in [Za1]: Let X ⊂ P be a (reduced and irreducible) subvariety. A k – secant space to X is a k – dimensional linear subspace of P which is spanned by k+1 points from X, the k – secant variety of X in P is the (closure of the) union of all the k – secant spaces of X. Zak denotes this space by S(X), we shall als...
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ژورنال
عنوان ژورنال: Arkiv för Matematik
سال: 1994
ISSN: 0004-2080
DOI: 10.1007/bf02559525