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This tag is used if a reference is needed in a paper or textbook on a specific result.

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Subgroup of $\mathrm{GL}_n$ stabilizing linear subspace skew-symmetric matrices

Here is the worst possible proof of all but one case, namely $m=r=3$ (but this is not included in your question as stated, though I think it is claimed in the paper.) Let $r$ denote the dimension of …
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8 votes

How should I think about the Grothendieck-Springer alteration?

The answer to 1) is that this is a special case of a broader phenomenon for symplectic resolutions (though I think some features are specific to the Grothendieck-Springer case.) For instance you have …
dhy's user avatar
  • 5,958
8 votes
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References for infinite-dimensional integrable systems?

There are lots of papers on say, W-algebras, that relate them to integrable systems like KdV, the KP hierarchy, etc. Algebraically this is done just by writing down infinitely many commuting operating …