Top network posts

• 17 Example of an ample line bundle $L$ with $L^{\otimes m}$ very ample and $L^{\otimes (m+1)}$ not very ample
• 16 Do automorphisms of a finitely generated free module restrict to automorphisms on every invariant submodule?
• 12 "path-connectedness" of an algebraic variety
• 10 Is there a non-homogeneous ideal whose radical is homogeneous?
• 9 Hartshorne exercise 1.1 (c)
• 8 how to prove that an algebraic variety is normal but not smooth?
• 7 The set of polynomials which "cut out" smooth subsets of projective space is open and dense
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