Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A note concerning the invertibility of certain alternant matrices   This brief note concerns the invertibility of certain alternant matrices. In
particular those that consisting of polynomials and products of polynomials and
logarithms are shown to be invertible under appropriate conditions on the
degrees of the polynomials.

6
The categories of this paper are: astro-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: nucl-th
18
The categories of this paper are: econ
23
The categories of this paper are: solv-int
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The categories of this paper are: acc-phys
24
The categories of this paper are: dg-ga
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The categories of this paper are: funct-an
14
The categories of this paper are: math-ph
35
The categories of this paper are: mtrl-th
10
The categories of this paper are: q-bio
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The categories of this paper are: cmp-lg
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The categories of this paper are: q-fin
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The categories of this paper are: cond-mat
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The categories of this paper are: patt-sol
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The categories of this paper are: alg-geom