Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Deuflhard-type exponential integrator Fourier pseudospectral method
  for the "Good" Boussinesq equation   We propose an exponential integrator Fourier pseudospectral method DEI-FP for
solving the "Good" Boussinesq (GB) equation. The numerical scheme is based on a
Deuflhard-type exponential integrator and a Fourier pseudospectral method for
temporal and spatial discretizations, respectively. The scheme is fully
explicit and efficient due to the fast Fourier transform. Rigorous error
estimates are established for the method without any CFL-type condition
constraint. In more details, the method converges quadratically and spectrally
in time and space, respectively. Extensive numerical experiments are reported
to confirm the theoretical analysis and to demonstrate rich dynamics of the GB
equation.

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The categories of this paper are: cond-mat
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The categories of this paper are: patt-sol
20
The categories of this paper are: acc-phys
14
The categories of this paper are: math-ph
31
The categories of this paper are: ao-sci
17
The categories of this paper are: q-fin
9
The categories of this paper are: nlin
34
The categories of this paper are: chem-ph
30
The categories of this paper are: q-alg
33
The categories of this paper are: plasm-ph
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The categories of this paper are: hep-ex
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The categories of this paper are: hep-ph
32
The categories of this paper are: atom-ph
12
The categories of this paper are: nucl-th
6
The categories of this paper are: astro-ph
37
The categories of this paper are: supr-con