Numerical Approaches for Solving Nonlinear Equations and Systems

A special issue of Mathematics (ISSN 2227-7390). This special issue belongs to the section "Difference and Differential Equations".

Deadline for manuscript submissions: 31 July 2024 | Viewed by 980

Special Issue Editors


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Guest Editor
School of Computing, University of North Florida, Jacksonville, FL 32224, USA
Interests: numerical methods; scientific computing; pattern recognition; robot coalition; energy-aware cybersecurity; machine learning

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Guest Editor
Department of Mathematical Sciences, University of South Dakota, Vermillion, SD 57069, USA
Interests: numerical analysis; entropy convergence analysis; nonlinear hyperbolic conservation laws

Special Issue Information

Dear Colleagues,

Understanding real-life phenomena observed in the life, physical, and social sciences and engineering has been aided by mathematical and computational modelling. Nonlinear equations and systems arise in the modelling of a wide variety of problems of astrophysics, chemical reactions, economics, electronic circuits, fluid flow, gene propagation, heat transfer, kinematics, population growth, and so on. While these applications appear to be varied in the problems they model, and although they might lead to different classes of nonlinear equations and systems, they share a common mathematical theme of initial- and boundary-value problems in ordinary and partial differential equations. The major difficulties encountered in the mathematical theory of nonlinear systems are attributed to factors such as the nature of the nonlinearity and the geometry involved. For this reason, the development of robust and accurate numerical methods for use in nonlinear equations and systems continues to be a great challenge, and this Special Issue will be focused on numerical approaches to solving such systems.

Prof. Dr. Asai Asaithambi
Prof. Dr. Nan Jiang
Guest Editors

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Keywords

  • nonlinear equations and systems
  • ordinary and partial differential equations
  • initial and boundary value problems
  • numerical methods
  • finite differences and finite elements
  • coordinate transformations
  • pseudospectral methods

Published Papers (1 paper)

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Research

19 pages, 340 KiB  
Article
On the Convergence of α Schemes with Source Terms for Scalar Convex Conservation Laws
by Nan Jiang
Mathematics 2023, 11(15), 3267; https://doi.org/10.3390/math11153267 - 25 Jul 2023
Viewed by 577
Abstract
In this study, we use an extension of Yang’s convergence criterion [N. Jiang, On the wavewise entropy inequality for high-resolution schemes with source terms II: the fully discrete case] to show the entropy convergence of a class of fully discrete α schemes, [...] Read more.
In this study, we use an extension of Yang’s convergence criterion [N. Jiang, On the wavewise entropy inequality for high-resolution schemes with source terms II: the fully discrete case] to show the entropy convergence of a class of fully discrete α schemes, now with source terms, for non-homogeneous scalar convex conservation laws in the one-dimensional case. The homogeneous counterparts (HCPs) of these schemes were constructed by S. Osher and S. Chakravarthy in the mid-1980s [A New Class of High Accuracy TVD Schemes for Hyperbolic Conservation Laws (1985), Very High Order Accurate TVD Schemes (1986)], and the entropy convergence of these methods, when m=2, was settled by the author [N. Jiang, The Convergence of α Schemes for Conservation Laws II: Fully-Discrete]. For semi-discrete α schemes, with or without source terms, the entropy convergence of these schemes was previously established (for m=2) by the author [N. Jiang, The Convergence of α Schemes for Conservation Laws I: Semi-Discrete Case]. Full article
(This article belongs to the Special Issue Numerical Approaches for Solving Nonlinear Equations and Systems)
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