Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Boundary pointwise regularity and applications to the regularity of free
  boundaries   In this paper, we develop a series of boundary pointwise regularity for
Dirichlet problems and oblique derivative problems. As applications, we give
direct and simple proofs of the higher regularity of the free boundaries in
obstacle-type problems and one phase problems.

25
The categories of this paper are: patt-sol
33
The categories of this paper are: plasm-ph
14
The categories of this paper are: math-ph
21
The categories of this paper are: adap-org
7
The categories of this paper are: hep-th
16
The categories of this paper are: stat
20
The categories of this paper are: acc-phys
26
The categories of this paper are: bayes-an
3
The categories of this paper are: physics
9
The categories of this paper are: nlin
11
The categories of this paper are: hep-lat
17
The categories of this paper are: q-fin
15
The categories of this paper are: nucl-ex
0
The categories of this paper are: hep-ph
27
The categories of this paper are: comp-gas
6
The categories of this paper are: astro-ph