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Mathematics of Computation

Published by the American Mathematical Society since 1960 (published as Mathematical Tables and other Aids to Computation 1943-1959), Mathematics of Computation is devoted to research articles of the highest quality in computational mathematics.

ISSN 1088-6842 (online) ISSN 0025-5718 (print)

The 2020 MCQ for Mathematics of Computation is 1.78.

What is MCQ? The Mathematical Citation Quotient (MCQ) measures journal impact by looking at citations over a five-year period. Subscribers to MathSciNet may click through for more detailed information.

 

Acoustic vibration problem for dissipative fluids
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by Felipe Lepe, Salim Meddahi, David Mora and Rodolfo Rodríguez HTML | PDF
Math. Comp. 88 (2019), 45-71 Request permission

Abstract:

In this paper we analyze a finite element method for solving a quadratic eigenvalue problem derived from the acoustic vibration problem for a heterogeneous dissipative fluid. The problem is shown to be equivalent to the spectral problem for a non-compact operator and a thorough spectral characterization is given. The numerical discretization of the problem is based on Raviart-Thomas finite elements. The method is proved to be free of spurious modes and to converge with optimal order. Finally, we report numerical tests which allow us to assess the performance of the method.
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Additional Information
  • Felipe Lepe
  • Affiliation: CI2MA, Departamento de Ingeniería Matemática, Universidad de Concepción, Casilla 160-C, Concepción, Chile
  • MR Author ID: 1070451
  • Email: flepe@ing-mat.udec.cl
  • Salim Meddahi
  • Affiliation: Departamento de Matemáticas, Facultad de Ciencias, Universidad de Oviedo, Calvo Sotelo s/n, Oviedo, Spain
  • MR Author ID: 331506
  • Email: salim@uniovi.es
  • David Mora
  • Affiliation: Departamento de Matemática, Universidad del Bío-Bío, Casilla 5-C, Concepción, Chile; and Centro de Investigación en Ingeniería Matemática (CI$^{\mathrm {2}}$MA), Universidad de Concepción, Concepción, Chile
  • MR Author ID: 876029
  • Email: dmora@ubiobio.cl
  • Rodolfo Rodríguez
  • Affiliation: CI$^{\mathrm {2}}$MA, Departamento de Ingeniería Matemática, Universidad de Concepción, Casilla 160-C, Concepción, Chile
  • Email: rodolfo@ing-mat.udec.cl
  • Received by editor(s): October 10, 2016
  • Received by editor(s) in revised form: July 24, 2017, and October 11, 2017
  • Published electronically: March 26, 2018
  • Additional Notes: The first author was supported by a CONICYT fellowship (Chile).
    The second author was supported by Spain’s Ministry of Economy Project MTM2013-43671-P
    The third author was partially supported by CONICYT-Chile through FONDECYT project 1140791 (Chile) and by DIUBB through project 151408 GI/VC, Universidad del Bío-Bío (Chile)
    The fourth author was partially supported by BASAL project CMM, Universidad de Chile (Chile).
  • © Copyright 2018 American Mathematical Society
  • Journal: Math. Comp. 88 (2019), 45-71
  • MSC (2010): Primary 65N25, 65N30, 76M10
  • DOI: https://doi.org/10.1090/mcom/3336
  • MathSciNet review: 3854050