OS Partielle Differentialgleichungen: The Cauchy problem for the Jordan-Moore-Gibson-Thompson equation

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Donnerstag, 4. Februar 2021
15:15 bis 16:45 Uhr

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Vortragende Person/Vortragende Personen:
Prof. Dr. Reinhard Racke

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Abstract: We consider the Cauchy problem of a third order in time nonlinear equation known as the JordanMoore-Gibson-Thompson equation arising in acoustics as an alternative model to the Kuznetsov equation. We show a local existence result in appropriate function spaces, and, using the energy method together with a bootstrap argument, we prove a global existence result for small data, without using the linear decay. Finally, polynomial decay rates in time for a norm related to the solution will be obtained.