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Results tagged with algebraic-k-theory
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user 2628
17
votes
Does every projective A/I-module come from A?
No. Here's an "example" (it's not quite completely explicit, but with a little effort you can make it absolutely explicit). Let $A = {\mathbb C}[x,y]$ and $I = (y^2- x(x+1)(x-1))$. [If you are comf …
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