2021
DOI: 10.1142/s0219891621500041
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The global existence issue for the compressible Euler system with Poisson or Helmholtz couplings

Abstract: We consider the Cauchy problem for the barotropic Euler system coupled to Helmholtz or Poisson equations, in the whole space. We assume that the initial density is small enough, and that the initial velocity is close to some reference vector field [Formula: see text] such that the spectrum of [Formula: see text] is positive and bounded away from zero. We prove the existence of a global unique solution with (fractional) Sobolev regularity, and algebraic time decay estimates. Our work extends Grassin and Serre’s… Show more

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Cited by 4 publications
(2 citation statements)
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“…We would like to stress that, under certain hypotheses on initial data, Serre and Grassin [27,28] proved global smooth solutions to the compressible Euler in R d (d ≥ 1). Recently, these results have been extended by Blanc et al [4] for the Euler system coupled to the Helmholtz or Poisson equations.…”
Section: Introductionmentioning
confidence: 86%
“…We would like to stress that, under certain hypotheses on initial data, Serre and Grassin [27,28] proved global smooth solutions to the compressible Euler in R d (d ≥ 1). Recently, these results have been extended by Blanc et al [4] for the Euler system coupled to the Helmholtz or Poisson equations.…”
Section: Introductionmentioning
confidence: 86%
“…As for the compressible Euler equations with Riesz interactions, Choi [14] proved the local well-posedness of classical solutions and exhibited sufficient conditions of finite time blow-up phenomena. We also mention that Danchin and Ducomet [23,24,25] dealt with the well-posedness issue in the case that the density contains vacuum and that the initial velocity allows some reference vector field. For the one-dimensional pressureless Euler flows with non-local forces, there exist critical thresholds between the subcritical region with global regularity and the supercritical region with finite-time blow-up of classical solutions, cf.…”
Section: Introductionmentioning
confidence: 99%