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user2520938
  • Member for 9 years, 11 months
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question
33
No matter how many algebraic invariants we attach to topological spaces, there will always be nonhomeomorphic spaces agreeing on all their invariants
Mar 23, 2016
question
17
Is the Chow ring of a wonderful model for a hyperplane arrangement isomorphic to the singular cohomology ring?
Aug 31, 2017
question
14
Relation between mirror symmetry, homological mirror symmetry, and SYZ conjecture
Dec 9, 2018
question
11
How to define jet bundles algebraically?
Aug 16, 2020
question
11
What does it mean that $[X]+[Y]=0$ in the Grothendieck ring of varieties?
Apr 13, 2017
question
9
Is $\mathbb{C}^n\setminus V(f)$ homotopy equivalent with a "large ball complement"?
Dec 8, 2018
question
8
Jones' theorem for non-simply-connected spaces?
Apr 12, 2021
question
7
Homotopy type of continuous/smooth/analytic loop spaces?
Apr 18, 2021
question
6
Detecting affine varieties in the Grothendieck ring
May 17, 2020
question
5
Operations on perverse sheaves on disk
Apr 17, 2020
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43
The binomial coefficient $n\choose m$ is divisible by $n/\gcd(n,m)$
21
May a 'ball' that has been 'cut off' still be called a 'ball'?
20
Is every prime the average of two other primes?
18
What's so useful about diagonalizing a matrix?
16
How could the Collatz conjecture possibly be undecidable?