Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Unipotent Invariant Matrices   We describe the variety of fixed points of a unipotent operator acting on the
space of matrices. We compute the determinant and the rank of a generic
(symmetric, or anti-symmetric) matrix in the fixed variety, yielding
information about the generic singular locus of the corresponding bilinear
form.

35
The categories of this paper are: mtrl-th
27
The categories of this paper are: comp-gas
24
The categories of this paper are: dg-ga
29
The categories of this paper are: funct-an
9
The categories of this paper are: nlin
20
The categories of this paper are: acc-phys
6
The categories of this paper are: astro-ph
32
The categories of this paper are: atom-ph
11
The categories of this paper are: hep-lat
5
The categories of this paper are: gr-qc
15
The categories of this paper are: nucl-ex
4
The categories of this paper are: cond-mat
14
The categories of this paper are: math-ph
25
The categories of this paper are: patt-sol
22
The categories of this paper are: chao-dyn
21
The categories of this paper are: adap-org