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arxiv: 1211.2463 · v1 · pith:WPHTK5BWnew · submitted 2012-11-11 · 🧮 math.AP

Nonlinear Instability Theory of Lane-Emden stars

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keywords instabilitylane-emdennonlinearadiabaticaroundconfigurationsequilibriumestablish
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We establish a nonlinear instability of the Euler-Poisson system for polytropic gases whose adiabatic exponents take value in $6/5<\gamma<4/3$ around the Lane-Emden equilibrium star configurations.

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