Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Gradient Superconvergence of Bilinear Finite Volume Element for
  Elliptic Problems   We study the gradient superconvergence of bilinear finite volume element
(FVE) solving the elliptic problems. First, a superclose weak estimate is
established for the bilinear form of the FVE method. Then, we prove that the
gradient approximation of the FVE solution has the superconvergence property:
$\max_{P\in S}|(\nabla u-\overline{\nabla}u_h)(P)|=O(h^2)|\ln h|$, where
$\overline{\nabla}u_h(P)$ denotes the average gradient on elements containing
point $P$ and $S$ is the set of optimal stress points composed of the mesh
points, the midpoints of edges and elements.

14
The categories of this paper are: math-ph
9
The categories of this paper are: nlin
17
The categories of this paper are: q-fin
8
The categories of this paper are: hep-ex
27
The categories of this paper are: comp-gas
3
The categories of this paper are: physics
16
The categories of this paper are: stat
26
The categories of this paper are: bayes-an
11
The categories of this paper are: hep-lat
19
The categories of this paper are: eess
32
The categories of this paper are: atom-ph
23
The categories of this paper are: solv-int
5
The categories of this paper are: gr-qc
0
The categories of this paper are: hep-ph
18
The categories of this paper are: econ
15
The categories of this paper are: nucl-ex