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13
Why don’t more mathematicians improve Wikipedia articles?
1
A simple and good reference about solitons
1
Does a *topological* manifold have an exhaustion by compact submanifolds with boundary?
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What are the invariant Pseudo-differential operators on a Lie group?
3
Great mathematics books by pre-modern authors
30
Is rigour just a ritual that most mathematicians wish to get rid of if they could?
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Old books still used
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Fixed point theorems
7
Lie group action with no slice
20
Notes for Bott’s 1963 lectures on Morse theory
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Any good books on numerical methods for ordinary differential equations?
0
Proofs for doubly ruled surfaces
8
Definition of Sobolev spaces as a space of sections of certain type
3
First known proof of $\sqrt 2$ is irrational with prime factorization?
27
Square root of a positive $C^\infty$ function.
1
Measure theory treatment geared toward the Riesz representation theorem
88
About a letter by Richard Palais of 1965.
8
Music: mathematical point of view (revised)
2
Softwares for drawing hyperbolic surfaces , closed, with boundaries or with punctures ?
3
What is / are the softwares to use to draw surfaces of the form of a two or three-holed torus , or torus, or torus with cusps attached to it?
11
Characterization of the Lie derivative
1
History of the triangle inequality
0
Groupoids vs Pseudogroups
10
Why the triangle inequality?
10
What is the standard notation for group action
2
Smooth vector field along an immersion.
4
Finite-dimensional faithful representations of compact groups
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What universities have laid off tenured math faculty for financial reasons?
4
Herpolhode equation
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The relationship between Crofton formula and Radon transform.
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