List questions from invariance

Published on 21 Jan 2012 - 16:58

75

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$S_k$ action on $A/I$

Published on 13 Jun 2012 - 19:29

88

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Constructing the sequence: $0\rightarrow (x-y)^{S_2} \stackrel{f}{\rightarrow} k[x+y,xy]\stackrel{g}{\rightarrow} k[y]$

Published on 14 Jun 2012 - 6:39

165

Views

Identifying $k[x_1,x_2,y_1,y_2]^{\epsilon}$ with $k[x,y]\wedge k[x,y]$

Published on 16 Jun 2012 - 7:37

181

Views

endomorphism and subspace

Published on 29 Jul 2012 - 9:37

278

Views

Using the invariance principle: how to solve $n+d(n)+d(d(n))=m$?

Published on 13 Aug 2012 - 17:17

141

Views

Invariant means on the integers restricted to the set of squares

Published on 31 Oct 2012 - 0:25

1.2k

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Maximal Positive Invariant Set -- Some fine print

Published on 25 Mar 2026 - 6:00

111

Views

Variance Formula

Published on 10 Dec 2012 - 20:49

7k

Views

Rotation invariant tensors

Published on 22 Dec 2012 - 23:27

861

Views

Invariants in a second order equation

Published on 23 Dec 2012 - 18:37

171

Views

Is it possible to find a 2D distribution function such that the higher order moments always exist?

Published on 12 Feb 2013 - 9:25

157

Views

Does a constant of motion always imply hamiltonian?

Published on 08 Mar 2013 - 4:10

275

Views

Vertex of a pentagon-Does the algorithm always stop?

Published on 23 Mar 2013 - 12:04

352

Views

Regular hexagon divided into triangles

Published on 24 Feb 2026 - 8:36

List Question

Invariant set: sufficient condition

$S_k$ action on $A/I$

Constructing the sequence: $0\rightarrow (x-y)^{S_2} \stackrel{f}{\rightarrow} k[x+y,xy]\stackrel{g}{\rightarrow} k[y]$

Identifying $k[x_1,x_2,y_1,y_2]^{\epsilon}$ with $k[x,y]\wedge k[x,y]$

endomorphism and subspace

Using the invariance principle: how to solve $n+d(n)+d(d(n))=m$?

Invariant means on the integers restricted to the set of squares

Maximal Positive Invariant Set -- Some fine print

Variance Formula

Rotation invariant tensors

Invariants in a second order equation

Is it possible to find a 2D distribution function such that the higher order moments always exist?

Does a constant of motion always imply hamiltonian?

Vertex of a pentagon-Does the algorithm always stop?

Regular hexagon divided into triangles

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