List questions from invariant-theory

Published on 29 Jan 2016 - 14:30

243

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What does it take to have a precise definition of volume?

Published on 29 Jan 2016 - 14:43

242

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Matrix representation of a 6-dimensional Lie algebra

Published on 29 Jan 2016 - 16:55

34

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Does the order of a finite group divide the product of degrees of a system of parameters of the invariant algebra?

Published on 05 Feb 2016 - 18:57

270

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Number of eigenvalues for this operator

Published on 09 Feb 2016 - 18:29

415

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What are the invariants of a number field?

Published on 13 Feb 2016 - 21:10

208

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Difference between invariant and contractive sets

Published on 29 Feb 2016 - 10:34

417

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Non-separated quotient of separated scheme

Published on 07 Mar 2016 - 11:15

209

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Finding the defining equations for a simple quotient variety

Published on 11 Mar 2016 - 1:53

244

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Normalisation of an invariant measure

Published on 11 Mar 2016 - 23:26

200

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Can the quotient by a nonabelian group yield an abelian singularity?

Published on 25 Mar 2026 - 8:09

281

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Existence of categorical quotient $X/\mathbb{G}_{m,A}$.

Published on 26 Mar 2026 - 4:34

314

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How to show that if $W\subset V$ is invariant under $T:V\to V$ and $\dim{W}=1$, then $W$ is spanned by an eigenvector for $T$?

Published on 04 Apr 2016 - 2:07

117

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How to show that $S(U)$ is invariant under $T$ based on the following assumption?

Published on 04 Apr 2016 - 19:29

244

Views

Integer matrix invariant factors

Published on 09 Apr 2016 - 19:07

List Question

Invariants of a real symmetric matrix

What does it take to have a precise definition of volume?

Matrix representation of a 6-dimensional Lie algebra

Does the order of a finite group divide the product of degrees of a system of parameters of the invariant algebra?

Number of eigenvalues for this operator

What are the invariants of a number field?

Difference between invariant and contractive sets

Non-separated quotient of separated scheme

Finding the defining equations for a simple quotient variety

Normalisation of an invariant measure

Can the quotient by a nonabelian group yield an abelian singularity?

Existence of categorical quotient $X/\mathbb{G}_{m,A}$.

How to show that if $W\subset V$ is invariant under $T:V\to V$ and $\dim{W}=1$, then $W$ is spanned by an eigenvector for $T$?

How to show that $S(U)$ is invariant under $T$ based on the following assumption?

Integer matrix invariant factors

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