Global well‐posedness of classical solutions with large oscillations and vacuum to the three‐dimensional isentropic compressible Navier‐Stokes equations |
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| Authors: | Xiangdi Huang Jing Li Zhouping Xin |
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| Institution: | 1. University of Science and Technology of China, Department of Mathematics, Hefei 230026, P.R. China;2. Institute of Applied Mathematics AMSS & Hua Loo‐Keng Key Laboratory of Mathematics, Chinese Academy of Sciences, Beijing 100190, P.R. China;3. The Institute of Mathematical Sciences The Chinese University of Hong Kong, Shatin N. T. Hong Kong |
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| Abstract: | We establish the global existence and uniqueness of classical solutions to the Cauchy problem for the isentropic compressible Navier‐Stokes equations in three spatial dimensions with smooth initial data that are of small energy but possibly large oscillations with constant state as far field, which could be either vacuum or nonvacuum. The initial density is allowed to vanish, and the spatial measure of the set of vacuum can be arbitrarily large; in particular, the initial density can even have compact support. These results generalize previous results on classical solutions for initial densities being strictly away from vacuum and are the first for global classical solutions that may have large oscillations and can contain vacuum states. © 2012 Wiley Periodicals, Inc. |
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