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- W4289099867 abstract "We consider the isentropic Euler equations of gas dynamics in the whole two-dimensional space and we prove the existence of a $C^infty$ initial datum which admits infinitely many bounded admissible weak solutions. Taking advantage of the relation between smooth solutions to the Euler system and to the Burgers equation we construct a smooth compression wave which collapses into a perturbed Riemann state at some time instant $T > 0$. In order to continue the solution after the formation of the discontinuity, we adjust and apply the theory developed by De Lellis and Sz'ekelyhidi and we construct infinitely many solutions. We introduce the notion of an admissible generalized fan subsolution to be able to handle data which are not piecewise constant and we reduce the argument to finding a single generalized subsolution." @default.
- W4289099867 created "2022-08-01" @default.
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- W4289099867 date "2018-12-24" @default.
- W4289099867 modified "2023-09-30" @default.
- W4289099867 title "Non-uniqueness of admissible weak solutions to the compressible Euler equations with smooth initial data" @default.
- W4289099867 doi "https://doi.org/10.48550/arxiv.1812.09917" @default.
- W4289099867 hasPublicationYear "2018" @default.
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