Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Some (Hopf) algebraic properties of circulant matrices   We study some (Hopf) algebraic properties of circulant matrices, inspired by
the fact that the algebra of circulant $n\times n$ matrices is isomorphic to
the group algebra of the cyclic group with $n$ elements. We introduce also a
class of matrices that generalize both circulant and skew circulant matrices,
and for which the eigenvalues and eigenvectors can be read directly from their
entries.

35
The categories of this paper are: mtrl-th
10
The categories of this paper are: q-bio
28
The categories of this paper are: alg-geom
6
The categories of this paper are: astro-ph
34
The categories of this paper are: chem-ph
32
The categories of this paper are: atom-ph
0
The categories of this paper are: hep-ph
33
The categories of this paper are: plasm-ph
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The categories of this paper are: ao-sci
11
The categories of this paper are: hep-lat
3
The categories of this paper are: physics
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The categories of this paper are: dg-ga
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The categories of this paper are: patt-sol
5
The categories of this paper are: gr-qc
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The categories of this paper are: cmp-lg
12
The categories of this paper are: nucl-th