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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.

 

Numerical inverse Laplace transform for convection-diffusion equations
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by Nicola Guglielmi, María López-Fernández and Giancarlo Nino HTML | PDF
Math. Comp. 89 (2020), 1161-1191 Request permission

Abstract:

In this paper a novel contour integral method is proposed for linear convection-diffusion equations. The method is based on the inversion of the Laplace transform and makes use of a contour given by an elliptic arc joined symmetrically to two half-lines. The trapezoidal rule is the chosen integration method for the numerical inversion of the Laplace transform, due to its well-known fast convergence properties when applied to analytic functions. Error estimates are provided as well as careful indications about the choice of several involved parameters. The method selects the elliptic arc in the integration contour by an algorithmic strategy based on the computation of pseudospectral level sets of the discretized differential operator. In this sense the method is general and can be applied to any linear convection-diffusion equation without knowing any a priori information about its pseudospectral geometry. Numerical experiments performed on the Black–Scholes ($1D$) and Heston ($2D$) equations show that the method is competitive with other contour integral methods available in the literature.
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Additional Information
  • Nicola Guglielmi
  • Affiliation: Gran Sasso Science Institute, via Crispi 7, L’Aquila, Italy
  • MR Author ID: 603494
  • Email: nicola.guglielmi@gssi.it
  • María López-Fernández
  • Affiliation: Departamento de Análisis Matemático, Estadística e I.O., Matemática Aplicada, Facultad de Ciencias, Universidad de Málaga, Campus de Teatinos s/n, 29080, Málaga, Spain; and Department of Mathematics Guido Castelnuovo, Sapienza University of Rome, Italy
  • Email: maria.lopezf@uma.es
  • Giancarlo Nino
  • Affiliation: Section de Mathématiques, Université de Genève, 2-4 rue du Lièvre, 1211 Genève, Switzerland
  • Email: giancarlo.nino@unige.ch
  • Received by editor(s): September 5, 2018
  • Received by editor(s) in revised form: July 2, 2019, and August 21, 2019
  • Published electronically: January 6, 2020
  • Additional Notes: The first and second authors acknowledge INdAM GNCS for their financial support.
    The second author acknowledges partial support of the Spanish grant MTM2016-75465.
  • © Copyright 2020 American Mathematical Society
  • Journal: Math. Comp. 89 (2020), 1161-1191
  • MSC (2010): Primary 65L05, 65R10, 65J10, 65M20, 91-08
  • DOI: https://doi.org/10.1090/mcom/3497
  • MathSciNet review: 4063315