Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A lowest-degree strictly conservative finite element scheme for
  incompressible Stokes problem on general triangulations   In this paper, we propose a finite element pair for incompressible Stokes
problem. The pair uses a slightly enriched piecewise linear polynomial space
for velocity and piecewise constant space for pressure, and is illustrated to
be a lowest-degree conservative stable pair for the Stokes problem on general
triangulations.

25
The categories of this paper are: patt-sol
34
The categories of this paper are: chem-ph
18
The categories of this paper are: econ
19
The categories of this paper are: eess
7
The categories of this paper are: hep-th
27
The categories of this paper are: comp-gas
37
The categories of this paper are: supr-con
13
The categories of this paper are: quant-ph
23
The categories of this paper are: solv-int
22
The categories of this paper are: chao-dyn
15
The categories of this paper are: nucl-ex
12
The categories of this paper are: nucl-th
26
The categories of this paper are: bayes-an
16
The categories of this paper are: stat
17
The categories of this paper are: q-fin
8
The categories of this paper are: hep-ex