Abstract
We consider the equations of a viscous polytropic ideal gas in the domain exterior to a ball in ℝn (n=2 or 3) and prove the global existence of spherically symmetric smooth solutions for (large) initial data with spherical symmetry. The large-time behavior of the solutions is also discussed. To prove the existence we first study an approximate problem in a bounded annular domain and then obtain a priori estimates independent of the boundedness of the annular domain. Letting the diameter of the annular domain tend to infinity, we get a global spherically symmetric solution as the limit.
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Communicated by H. Araki
Dedicated to Professor Rolf Leis on the occasion of his 65th birthday
Supported by the SFB 256 of the Deutsche Forschungsgemeinschaft at the University of Boon.
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Jiang, S. Global spherically symmetric solutions to the equations of a viscous polytropic ideal gas in an exterior domain. Commun.Math. Phys. 178, 339–374 (1996). https://doi.org/10.1007/BF02099452
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DOI: https://doi.org/10.1007/BF02099452