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Top Questions
9 votes

$\mathrm{Ext}^n(\mathcal F, i_*\mathcal G) =\mathrm{Ext}^n(i^*\mathcal F,\mathcal G)$?

algebraic-geometry asked Nov 27 '11 at 18:33
math.stackexchange.com

8 votes

étale cohomology

algebraic-geometry etale-cohomology asked Oct 31 '11 at 16:24
math.stackexchange.com

6 votes

effective Cartier divisor is trivial

algebraic-geometry asked Jun 1 '11 at 19:14
math.stackexchange.com

5 votes

showing locally that a diagram commutes

algebraic-geometry commutative-algebra asked Jan 15 '11 at 12:40
math.stackexchange.com

5 votes

$\operatorname{Hom}(Z_p, Z_p) = Z_p$?

group-theory asked Sep 27 '11 at 11:56
math.stackexchange.com


Top Answers
11
What are the least sets of generators for $S_n$
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