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Jun
17
comment History of Gauss' Law
The eighth entry in its bibliography is to the paper of 1813 by Gauss.
Jun
17
comment History of Gauss' Law
Dear Michael Spivak, you could give a look at this paper of Viktor Katz on the subject, I hope it is useful to you.ingelec.uns.edu.ar/asnl/Materiales/Cap03Extras/Stokes-Katz.pdf
Jun
17
revised The fibers of the momentum map for the $SO(n+1)$ symmetry of the geodesic flow on $S^n$
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Jun
17
awarded  Necromancer
Jun
17
revised The fibers of the momentum map for the $SO(n+1)$ symmetry of the geodesic flow on $S^n$
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Jun
17
revised The fibers of the momentum map for the $SO(n+1)$ symmetry of the geodesic flow on $S^n$
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Jun
17
revised The fibers of the momentum map for the $SO(n+1)$ symmetry of the geodesic flow on $S^n$
added 69 characters in body; edited tags
Jun
17
revised The fibers of the momentum map for the $SO(n+1)$ symmetry of the geodesic flow on $S^n$
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Jun
17
revised The fibers of the momentum map for the $SO(n+1)$ symmetry of the geodesic flow on $S^n$
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Jun
17
asked The fibers of the momentum map for the $SO(n+1)$ symmetry of the geodesic flow on $S^n$
Jun
9
comment Depressed graduate student.
math.uh.edu/~tomforde/Articles/Emotional-Perils.pdf
Jun
9
accepted what are the killing vector fields on a triaxial ellipsoid?
Jun
9
comment what are the killing vector fields on a triaxial ellipsoid?
I have received two answers that are equally very interesting. My question was not restrictive on the kind of proof. Not being possible multiple choices, I have accepted the first posted answer.
Jun
8
comment what are the killing vector fields on a triaxial ellipsoid?
Dear Robert Bryant, I like this argument very much: going along the lines of your sketch, I should have the occasion to give a proof in closed-form. Your and Algol's answers are both very exaustive. Thanks you.
Jun
8
comment what are the killing vector fields on a triaxial ellipsoid?
Dear Algol Thanks a lot for the proper reference, and for the explanation.
Jun
8
asked what are the killing vector fields on a triaxial ellipsoid?
Jun
3
comment Schwartz space inequality
@Feynmaniac: About an approach which doesn't separate the two cases $|x|\ge 2|y|$ and $|x|\le 2|y|$: couldn't it be possible the following proof? 1)use the triangle inequality $|x|\le |y|+|x-y|$, 2)apply the binomial formula to $(|y|+|x-y|)^l$, 3)apply the hypothesis on $g$, and finally $|y|^k\le(1+|y|)^l$, for any $y\in\mathbb{R}$ and $0\le k\le l$.
Jun
2
comment Algebraic structures of greater cardinality than the continuum?
Dear Qiaochu Yuan: even if not an exact duplicate, the OP could read the answers to the similar question mathoverflow.net/questions/32370/…. Was you refering to it?
Jun
1
comment Schwartz space inequality
Should not it be Schwartz?
Jun
1
revised Schwartz space inequality
edited tags