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arXiv · 2611.06309

Large time behavior of global solutions to one-dimensional non-isentropic compressible Navier-Stokes-Poisson equations with large initial data

Lan Zhang·Huijiang Zhao
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Abstract

In this paper, we are concerned with the construction of global solutions to the Cauchy problem for the one-dimensional non-isentropic compressible Navier-Stokes-Poisson equations, as well as the precise description of their large-time behavior. While results for small initial data are well-established, the case of large initial perturbations remains less satisfactory. Even for constant transport coefficients, only the Nishida-Smoller type solutions have been obtained so far. In this work, we will provide a complete resolution of this problem. The key idea involves revealing favorable hidden identities of the potential force and a new representation for the specific volume, which enables us to derive uniform upper and lower bounds on this quantity. Moreover, this strategy extends to compressible viscous single-ion flow under the Boltzmann relation; notably, this new method for deriving lower and upper bounds on the specific volume also applies to the Navier-Stokes equations. The proof relies on a domain decomposition technique and some new dissipative structures to close the nonlinear energy estimates.

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Lan Zhang, Huijiang Zhao. 2026-11-05. Large time behavior of global solutions to one-dimensional non-isentropic compressible Navier-Stokes-Poisson equations with large initial data. https://arxiv.org/abs/2611.06309

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