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On the nonexistence of a global nontrivial subsonic solution in a 3D unbounded angular domain. (English) Zbl 1213.35306

The authors consider the steady isentropic irrotational flow with low Mach number described by the potential equation. The domain is unbounded and is one part of a 3D ramp. They focus on the non-existence of a global nontrivial subsonic solution to such equation. Under some assumptions about the flow they prove that there is no such solution to the system.

MSC:

35L70 Second-order nonlinear hyperbolic equations
35L65 Hyperbolic conservation laws
35L67 Shocks and singularities for hyperbolic equations
76N15 Gas dynamics (general theory)
Full Text: DOI

References:

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