Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Numerical solution of the wave equation on particular space-times using
  CMC slices and scri-fixing conformal compactification   In this paper we present in detail the numerical solution of the conformally
invariant wave equation on top of a fixed background space-time corresponding
to two different cases: i) 1+1 Minkowski space-time in Cartesian coordinates
and ii) Schwarzschild space-time. In both cases we use hyperboloidal constant
mean curvature slices and scri-fixing conformal compactification, and solve the
wave equation on the conformal space-time. In the case of the Schwarzschild
space-time we study the quasinormal mode oscillations and the late-time
polynomial tail decay exponents corresponding to a mass-less scalar field. We
also present general formulas to construct hyperboloidal constant mean
curvature slicings of spherically symmetric, static, space-times in spherical
coordinates.

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The categories of this paper are: plasm-ph
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The categories of this paper are: atom-ph
3
The categories of this paper are: physics
29
The categories of this paper are: funct-an
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The categories of this paper are: acc-phys
13
The categories of this paper are: quant-ph
6
The categories of this paper are: astro-ph
9
The categories of this paper are: nlin
4
The categories of this paper are: cond-mat
25
The categories of this paper are: patt-sol
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The categories of this paper are: eess
34
The categories of this paper are: chem-ph
15
The categories of this paper are: nucl-ex
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The categories of this paper are: dg-ga
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The categories of this paper are: cmp-lg
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The categories of this paper are: supr-con