User Dick Palais

18 votes

What are examples of ordered fields that do not have the Archimedean Property?

answered Sep 21, 2010 at 15:27

17 votes

Accepted

Solitary waves and their symmetries

answered Sep 1, 2010 at 12:50

17 votes

Can we add two matrices by performing an operation on their eigenvalues & eigenvectors?

answered Sep 11, 2010 at 17:34

17 votes

Generalizing a problem to make it easier

answered Sep 26, 2010 at 13:07

17 votes

Fixed point theorems

answered Apr 10, 2013 at 13:58

16 votes

Newton equations, second order equation and (im)possible motions

answered Oct 23, 2010 at 14:54

16 votes

Book on symplectic geometry

answered Sep 17, 2010 at 5:14

16 votes

Shortest-path Distances Determining the Metric?

answered Jul 10, 2010 at 4:36

15 votes

Old books still used

answered Apr 15, 2013 at 2:06

14 votes

What universities have laid off tenured math faculty for financial reasons?

answered Apr 30, 2011 at 1:46

14 votes

What is the standard notation for group action

answered May 11, 2011 at 1:51

14 votes

Why the triangle inequality?

answered May 20, 2011 at 16:55

13 votes

Why don't more mathematicians improve Wikipedia articles?

answered May 22, 2013 at 17:59

12 votes

Characterization of the exterior derivative

answered Jan 11, 2015 at 1:15

12 votes

Accepted

Definition of Sobolev spaces as a space of sections of certain type

answered Sep 20, 2012 at 23:08

12 votes

Characterization of the Lie derivative

answered Mar 15, 2012 at 14:57

12 votes

Exponential map and covariant derivative

answered Jul 10, 2010 at 6:10

10 votes

Accepted

Do the Euler method's approximations always approach the true solution?

answered Oct 1, 2010 at 15:07

10 votes

Accepted

local structure of free $\mathbb{R}$ actions

answered Nov 4, 2010 at 16:27

10 votes

Music: mathematical point of view (revised)

answered Jul 5, 2012 at 19:32

10 votes

Looking for interesting actions that are not representations

answered Feb 22, 2011 at 18:50

9 votes

When do isometric actions exist?

answered Feb 28, 2011 at 6:22

9 votes

Maxwell Stress Tensor and Equations in Mathematician's Language

answered Feb 11, 2011 at 17:42

9 votes

Tubular neighbourhood of a smooth curve

answered Dec 25, 2010 at 5:34

9 votes

Most memorable titles

answered Dec 28, 2010 at 20:32

9 votes

When is Sobolev space a subset of the continuous functions?

answered Jul 5, 2010 at 16:58

8 votes

Good differential equations text for undergraduates who want to become pure mathematicians

answered Jul 4, 2010 at 1:30

8 votes

literature on geometrical viewpoint on calculus of variations for physics

answered Jul 28, 2010 at 22:12

8 votes

Is $L^p(\mathbb{R})$ minus the zero function contractible?

answered Sep 15, 2010 at 5:54

8 votes

Accepted

Lie group action with no slice

answered Jan 13, 2013 at 14:45

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121 Answers

What are examples of ordered fields that do not have the Archimedean Property?

Solitary waves and their symmetries

Can we add two matrices by performing an operation on their eigenvalues & eigenvectors?

Generalizing a problem to make it easier

Fixed point theorems

Newton equations, second order equation and (im)possible motions

Book on symplectic geometry

Shortest-path Distances Determining the Metric?

Old books still used

What universities have laid off tenured math faculty for financial reasons?

What is the standard notation for group action

Why the triangle inequality?

Why don't more mathematicians improve Wikipedia articles?

Characterization of the exterior derivative

Definition of Sobolev spaces as a space of sections of certain type

Characterization of the Lie derivative

Exponential map and covariant derivative

Do the Euler method's approximations always approach the true solution?

local structure of free $\mathbb{R}$ actions

Music: mathematical point of view (revised)

Looking for interesting actions that are not representations

When do isometric actions exist?

Maxwell Stress Tensor and Equations in Mathematician's Language

Tubular neighbourhood of a smooth curve

Most memorable titles

When is Sobolev space a subset of the continuous functions?

Good differential equations text for undergraduates who want to become pure mathematicians

literature on geometrical viewpoint on calculus of variations for physics

Is $L^p(\mathbb{R})$ minus the zero function contractible?

Lie group action with no slice