Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Natural domains for edge-degenerate differential operators   We study cone differential operators on the half-axis and edge-degenerate
differential operators on a half-space. We construct subspaces of edge Sobolev
spaces that can be considered as natural domains for edge-degenerate operators
and indicate how they can be used in the study of boundary problems for
edge-degenerate operators.

15
The categories of this paper are: nucl-ex
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The categories of this paper are: atom-ph
3
The categories of this paper are: physics
9
The categories of this paper are: nlin
4
The categories of this paper are: cond-mat
12
The categories of this paper are: nucl-th
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The categories of this paper are: q-fin
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The categories of this paper are: adap-org
11
The categories of this paper are: hep-lat
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The categories of this paper are: dg-ga
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The categories of this paper are: bayes-an
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The categories of this paper are: supr-con
6
The categories of this paper are: astro-ph
36
The categories of this paper are: cmp-lg
20
The categories of this paper are: acc-phys
14
The categories of this paper are: math-ph