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Remarks on a nonlinear transport problem
Journal article   Open access   Peer reviewed

Remarks on a nonlinear transport problem

Hans-Peter Gittel, Matthias Günther and Gerhard Ströhmer
Journal of Differential Equations, Vol.256(3), pp.957-988
02/01/2014
DOI: 10.1016/j.jde.2013.10.002
url
https://doi.org/10.1016/j.jde.2013.10.002View
Published (Version of record) Open Access

Abstract

A nonlinear transport problem of hyperbolic–elliptic type is studied. Estimates of potentials over varying domains and the method of characteristics enable one to treat the initial value problem for Hölder continuous data as an abstract evolution equation via Picard–Lindelöf theorem. In addition, existence for all times is proved. Similar techniques yield the existence of shock front solutions with smooth interfaces at least for a small time interval. By a priori estimates of approximating solutions, the results extend to the case of only bounded initial values. A modification of the system applies to the construction of a diffeomorphism with prescribed Jacobian determinant.
Elliptic–hyperbolic Transport equation Global existence Prescribed Jacobian determinant

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