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Mathematics
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  • Member for 9 years, 10 months
  • Last seen more than 1 year ago
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question
19
What is the geometric intuition for the $\bar \partial$-Poincare lemma, or for $\bar \partial$ more generally?
Aug 8, 2019
answer
11
If $R$ is a commutative ring with identity then $R[x_1, x_2, ..., x_n]$ is not a P.I.D.?
Jul 13, 2018
question
8
Applications of model theory - where are the sheaves?
Aug 1, 2018
question
6
What examples, exercises, topics, etc should I treat when teaching category theory to non-math people?
May 23, 2017
question
4
Why are sheaves called sheaves?
Sep 20, 2018
question
4
Stuck working through example of $\mathbb Q$-Gorenstein variety in Algebraic Geometry V
Nov 7, 2019
question
4
Counterexample to claim that Jacobson radical of a commutative ring is given by checking against units
Feb 17, 2020
answer
4
Nonwandering set (equivalent definitions)
Jul 16, 2018
question
3
Clarification of Theorem 2.4.3 in Weibel (left derived functors are universal $\delta$-functors)
Jul 10, 2018
question
3
When is a scheme topologically simply connected?
Oct 25, 2018
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13
Can one recover an algebraically closed field $k$ from the dots and arrows of its category of finitely generated $k$-algebras?
13
How to explain to an engineer what algebraic geometry is?
8
Can one determine the trace map for a nonsingular projective variety explicitly?
7
Largest number of points one can pick in finite projective space without getting three on a line
7
When does group cohomology $H^1(G,M)$ depend only on the image of $G$ in Aut($M$)?