Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Two-level DDM preconditioners for positive Maxwell equations   In this paper we develop and analyse domain decomposition methods for linear
systems of equations arising from conforming finite element discretisations of
positive Maxwell-type equations. Convergence of domain decomposition methods
rely heavily on the efficiency of the coarse space used in the second level. We
design adaptive coarse spaces that complement the near-kernel space made of the
gradient of scalar functions. This extends the results in [2] to the variable
coefficient case and non-convex domains at the expense of a larger coarse
space.

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The categories of this paper are: quant-ph
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The categories of this paper are: nucl-th
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The categories of this paper are: hep-lat
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The categories of this paper are: q-fin
29
The categories of this paper are: funct-an
7
The categories of this paper are: hep-th
21
The categories of this paper are: adap-org
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The categories of this paper are: alg-geom
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The categories of this paper are: comp-gas
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The categories of this paper are: bayes-an
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The categories of this paper are: astro-ph
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The categories of this paper are: atom-ph
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The categories of this paper are: eess
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The categories of this paper are: hep-ex
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The categories of this paper are: cmp-lg
33
The categories of this paper are: plasm-ph