Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Skew-symmetric operators and reflexivity   In contrast to the subspaces of all $C$-symmetric operators, we show that the
subspaces of all skew-C symmetric operators are reflexive and even
hyperreflexive with the constant $\kappa(\C^s)\leqslant 3$.

28
The categories of this paper are: alg-geom
8
The categories of this paper are: hep-ex
23
The categories of this paper are: solv-int
30
The categories of this paper are: q-alg
7
The categories of this paper are: hep-th
1
The categories of this paper are: cs
10
The categories of this paper are: q-bio
36
The categories of this paper are: cmp-lg
33
The categories of this paper are: plasm-ph
13
The categories of this paper are: quant-ph
12
The categories of this paper are: nucl-th
9
The categories of this paper are: nlin
11
The categories of this paper are: hep-lat
35
The categories of this paper are: mtrl-th
22
The categories of this paper are: chao-dyn
27
The categories of this paper are: comp-gas