Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Divergence form operators in Reifenberg flat domains   We study the boundary regularity of solutions of elliptic operators in
divergence form with $C^{0,\alpha}$ coefficients or operators which are small
perturbations of the Laplacian in non-smooth domains. We show that, as in the
case of the Laplacian, there exists a close relationship between the regularity
of the corresponding elliptic measure and the geometry of the domain.

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The categories of this paper are: hep-lat
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The categories of this paper are: econ
4
The categories of this paper are: cond-mat
3
The categories of this paper are: physics
23
The categories of this paper are: solv-int
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The categories of this paper are: atom-ph
37
The categories of this paper are: supr-con
0
The categories of this paper are: hep-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: astro-ph
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The categories of this paper are: bayes-an
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The categories of this paper are: gr-qc
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The categories of this paper are: q-alg
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The categories of this paper are: q-fin
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The categories of this paper are: nucl-ex
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The categories of this paper are: patt-sol