Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Existence and Nonlinear Stability of Rotating Star Solutions of the
  Compressible Euler-Poisson Equations   We prove existence of rotating star solutions which are steady-state
solutions of the compressible isentropic Euler-Poisson (EP) equations in 3
spatial dimensions, with prescribed angular momentum and total mass. This
problem can be formulated as a variational problem of finding a minimizer of an
energy functional in a broader class of functions having less symmetry than
those functions considered in the classical Auchmuty-Beals paper. We prove the
nonlinear dynamical stability of these solutions with perturbations having the
same total mass and symmetry as the rotating star solution. We also prove local
in time stability of $W^{1, \infty}(\RR^3)$ solutions where the perturbations
are entropy-weak solutions of the EP equations. Finally, we give a uniform (in
time) a-priori estimate for entropy-weak solutions of the EP equations.

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The categories of this paper are: cond-mat
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The categories of this paper are: q-fin
37
The categories of this paper are: supr-con
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The categories of this paper are: stat
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The categories of this paper are: cs
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The categories of this paper are: solv-int
36
The categories of this paper are: cmp-lg
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The categories of this paper are: hep-lat
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The categories of this paper are: nlin
34
The categories of this paper are: chem-ph
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The categories of this paper are: eess
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The categories of this paper are: acc-phys
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The categories of this paper are: chao-dyn
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The categories of this paper are: mtrl-th
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The categories of this paper are: hep-ph
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The categories of this paper are: econ