Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Simple finite element schemes for the solution of the curl-div system   New variational formulations are devised for the curl--div system, and the
corresponding finite element approximations are shown to converge. Curl--free
and divergence--free finite elements are employed for discretizing the problem.

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The categories of this paper are: astro-ph
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The categories of this paper are: q-alg
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The categories of this paper are: chem-ph
1
The categories of this paper are: cs
21
The categories of this paper are: adap-org
25
The categories of this paper are: patt-sol
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The categories of this paper are: nucl-ex
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The categories of this paper are: q-bio
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The categories of this paper are: dg-ga
13
The categories of this paper are: quant-ph
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The categories of this paper are: comp-gas
29
The categories of this paper are: funct-an
9
The categories of this paper are: nlin
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The categories of this paper are: solv-int
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The categories of this paper are: hep-ex
35
The categories of this paper are: mtrl-th