Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Fundamental solutions of MHD Stokes flow   A simple analytical solution is obtained for the MHD stokeslet in a
homogeneous magnetic field. This solution represents the flow past a small
particle and can also be interpreted as the flow sufficiently far away from a
body of finite size. Fundamental solutions are found in terms of velocity,
pressure and scalar potential distributions for the flows due to either a
concentrated force or a current source. The former consists of two basic
solutions for the force parallel and transverse to the magnetic field,
respectively. All fundamental solutions have the characteristic length scale of
the Hartmann boundary layer and two parabolic wakes developing along the
magnetic field.

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The categories of this paper are: supr-con
34
The categories of this paper are: chem-ph
17
The categories of this paper are: q-fin
21
The categories of this paper are: adap-org
14
The categories of this paper are: math-ph
30
The categories of this paper are: q-alg
22
The categories of this paper are: chao-dyn
35
The categories of this paper are: mtrl-th
9
The categories of this paper are: nlin
7
The categories of this paper are: hep-th
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The categories of this paper are: eess
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The categories of this paper are: bayes-an
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The categories of this paper are: ao-sci
29
The categories of this paper are: funct-an
24
The categories of this paper are: dg-ga
1
The categories of this paper are: cs