Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Cramer Varieties Cr(r,r+s,s)   In this paper we study quasi-homogeneous affine algebraic varieties, that is,
varieties obtained as closures of orbits of suitable group representations. We
also discuss one interesting case that has links with the Orthogonal
Grassmannian OGr(5,10). The main aim is to write the tangent bundle and the
canonical class of quasi-homogeneous affine algebraic varieties in terms of
group representations.

9
The categories of this paper are: nlin
3
The categories of this paper are: physics
22
The categories of this paper are: chao-dyn
33
The categories of this paper are: plasm-ph
7
The categories of this paper are: hep-th
16
The categories of this paper are: stat
4
The categories of this paper are: cond-mat
17
The categories of this paper are: q-fin
35
The categories of this paper are: mtrl-th
12
The categories of this paper are: nucl-th
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The categories of this paper are: hep-ex
18
The categories of this paper are: econ
28
The categories of this paper are: alg-geom
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The categories of this paper are: quant-ph
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The categories of this paper are: dg-ga
27
The categories of this paper are: comp-gas