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Transactions of the American Mathematical Society

Published by the American Mathematical Society since 1900, Transactions of the American Mathematical Society is devoted to longer research articles in all areas of pure and applied mathematics.

ISSN 1088-6850 (online) ISSN 0002-9947 (print)

The 2020 MCQ for Transactions of the American Mathematical Society is 1.48.

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A variational time discretization for compressible Euler equations
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by Fabio Cavalletti, Marc Sedjro and Michael Westdickenberg PDF
Trans. Amer. Math. Soc. 371 (2019), 5083-5155 Request permission

Abstract:

We introduce a variational time discretization for the multidimensional gas dynamics equations, in the spirit of minimizing movements for curves of maximal slope. Each time step requires the minimization of a functional measuring the acceleration of fluid elements, over the cone of monotone transport maps. We prove convergence to measure-valued solutions for the pressureless gas dynamics and the compressible Euler equations. For one space dimension, we obtain sticky particle solutions for the pressureless case.
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Additional Information
  • Fabio Cavalletti
  • Affiliation: SISSA, Via Bonomea 265, 34136 Trieste, Italy
  • MR Author ID: 956139
  • Email: cavallet@sissa.it
  • Marc Sedjro
  • Affiliation: AIMS Tanzania, Plot No. 288, Makwahiya Street, Regent Estate, Dar es Salaam, Tanzania
  • MR Author ID: 1092511
  • Email: sedjro@aims.ac.tz
  • Michael Westdickenberg
  • Affiliation: Lehrstuhl für Mathematik (Analysis), RWTH Aachen University, Templergraben 55, 52062 Aachen, Germany
  • MR Author ID: 654309
  • Email: mwest@instmath.rwth-aachen.de
  • Received by editor(s): July 15, 2015
  • Received by editor(s) in revised form: September 25, 2018
  • Published electronically: January 2, 2019
  • © Copyright 2019 American Mathematical Society
  • Journal: Trans. Amer. Math. Soc. 371 (2019), 5083-5155
  • MSC (2010): Primary 35L65, 49J40, 82C40
  • DOI: https://doi.org/10.1090/tran/7747
  • MathSciNet review: 3934479