Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Obtaining higher-order Galerkin accuracy when the boundary is
  polygonally approximated   We study two techniques for correcting the geometrical error associated with
domain approximation by a polygon. The first was introduced some time ago
\cite{bramble1972projection} and leads to a nonsymmetric formulation for
Poisson's equation. We introduce a new technique that yields a symmetric
formulation and has similar performance. We compare both methods on a simple
test problem.

11
The categories of this paper are: hep-lat
18
The categories of this paper are: econ
32
The categories of this paper are: atom-ph
27
The categories of this paper are: comp-gas
26
The categories of this paper are: bayes-an
8
The categories of this paper are: hep-ex
19
The categories of this paper are: eess
13
The categories of this paper are: quant-ph
17
The categories of this paper are: q-fin
24
The categories of this paper are: dg-ga
25
The categories of this paper are: patt-sol
3
The categories of this paper are: physics
6
The categories of this paper are: astro-ph
7
The categories of this paper are: hep-th
22
The categories of this paper are: chao-dyn
30
The categories of this paper are: q-alg