Tim Perutz

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Name Tim Perutz
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Diffeomorphism of 3-manifolds

dec 15 09 at 20:20 Agol 23.9k●1●33●85

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Finding cocycles that square to zero

dec 12 09 at 22:16 Mariano Suárez-Alvarez 30.6k●8●69●155

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104

Answers
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30
Can analysis detect torsion in cohomology?
28
Kähler structure on cotangent bundle?
26
How should one present curl and divergence in an undergraduate multivariable calculus class?
23
What is the Poincare dual of a symplectic form?
22
Failure of smoothing theory for topological 4-manifolds (2)
19
Fun applications of representations of finite groups (2)
18
Highly connected, compact complex manifolds
17
What manifolds are bounded by RP^odd?
16
Some basic questions about Chern-Simons theory
16
When are two symplectic forms “isotopic”?
16
Can cotangent bundles see exotic smooth structures?
15
Floer homology and status of the Arnold conjecture.
15
Kuranishi structures vs polyfolds
15
Seiberg-Witten theory on 4-manifolds with boundary
14
Stiefel-Whitney Classes over Integers?
14
Timeline of cohomology (1935 to 1938)
14
A question about MathSciNet etiquette
14
open problems in Seiberg-Witten Theory on 4-Manifolds
13
What are the uses of the homotopy groups of spheres?
13
Hochschild (co)homology of Fukaya categories and (quantum) (co)homology
13
Cohomology rings and 2D TQFTs
12
Intuition for Primitive Cohomology
11
What are the most attractive Turing undecidable problems in mathematics?
11
Automorphisms of Riemann surface and mapping class
11
Is canonical class a topological invariant?
10
symplectic 4-manifolds with free circle action
10
Pontrjagin numbers and exotic spheres
10
“Physical” construction of nonconstant meromorphic functions on compact Riemann surfaces?
10
References for “modern” proof of Newlander-Nirenberg Theorem
9
Surgery and homology: a reference request
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