Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Shearing radiative collapse with expansion and acceleration   We investigate the behaviour of a relativistic spherically symmetric
radiative star with an accelerating, expanding and shearing interior matter
distribution in the presence of anisotropic pressures. The junction condition
can be written in standard form in three cases: linear, Bernoulli and Riccati
equations. We can integrate the boundary condition in each case and three
classes of new solutions are generated. For particular choices of the metric we
investigate the physical properties and consider the limiting behaviour for
large values of time. The causal temperature can also be found explicitly.

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The categories of this paper are: stat
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The categories of this paper are: eess
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The categories of this paper are: supr-con
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The categories of this paper are: patt-sol
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The categories of this paper are: comp-gas
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The categories of this paper are: alg-geom
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The categories of this paper are: dg-ga
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The categories of this paper are: mtrl-th
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The categories of this paper are: chao-dyn
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The categories of this paper are: q-alg
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The categories of this paper are: nlin
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The categories of this paper are: solv-int
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The categories of this paper are: econ
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The categories of this paper are: atom-ph
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The categories of this paper are: adap-org
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The categories of this paper are: hep-ph