divisors
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Problem 47: Lazarsfeld’s PAG Example 1.2.30
Problem 47: Lazarsfeld Example 1.2.30: Divisors with ample normal bundle. Again, Lazarsfeld mostly leads the way…
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“Problem” 45. Notes on the pullback and pushforward.
Currently, there are several problems I am working on; I seem to be stuck on all…
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Problem 41: Hartshorne II.6.8
Hartshorne Exercise II.6.8. Let $\varphi: \PP{k}{n}\ra\PP{k}{m}$ be a morphism. Then: (a) Let $f:X\ra Y$ be a…
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Problem 26: Hartshorne II.6.2*
Hartshorne Exercise II.6.2. 6.2. Varieties in Projective Space. Let $k$ be an algebraically closed field, and…
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Problem 24: Hartshorne II.6.1
Hartshorne Exercise II.6.1. Let $X$ be a scheme satisfying $(*)$. Then $X\times\PP{k}{n}$ also satisfies $(*)$,and $\op{Cl}(X\times\PP{k}{n})\cong…