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image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Journal of Computati...arrow_drop_down
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Journal of Computational Physics
Article . 2000 . Peer-reviewed
License: Elsevier TDM
Data sources: Crossref
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
zbMATH Open
Article . 2000
Data sources: zbMATH Open
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New High-Resolution Semi-discrete Central Schemes for Hamilton–Jacobi Equations

New high-resolution semi-discrete central schemes for Hamilton-Jacobi equations
Authors: Kurganov, Alexander; Tadmor, Eitan;

New High-Resolution Semi-discrete Central Schemes for Hamilton–Jacobi Equations

Abstract

The subject of this paper is a finite difference scheme for the Hamilton - Jacobi equation \[ \phi_t+H(\nabla_x\phi)=0, \] where \(H\) is the Hamiltonian and \(x=(x_1,x_2,\cdots,x_d)\). The proposed scheme is of central type i.e. values of the function \(\phi\) and its space derivatives are computed (in the case of one space dimension), in the point \(x_{j+{1\over 2}}\), not belonging to the space grid. Also the forward time step is realized by approximation of the integral in the formula \[ \phi(x_{j+{1\over 2}},t^{n+1})=\phi(x_{j+{1\over 2}},t^n)- \int_{t^n}^{t_{n+1}}H(\phi_x(x_{j+{1\over 2}},t)) dt \] with help of the value of \(H\) at the central point \((x_{j+{1\over 2}},t^{n+{1\over 2}})\). In order to compute all the necessary values, interpolation by a polynomial of the degree 2 with delimiters is used. The maximal speed of propagation is estimated on each step and this information is used for final approximation of the value of \(\phi\) at the time level \(t^{n+1}\). Since the proposed scheme is central, there is no problems with ``upwinding''. The used delimiter prevents against parasite oscillations. First and second order, as well as one and multidimensional space versions of the scheme are discussed. The paper contains numerical examples.

Keywords

Method of lines for initial value and initial-boundary value problems involving PDEs, numerical examples, Finite difference methods for initial value and initial-boundary value problems involving PDEs, semidiscretization, Hamilton-Jacobi equation, finite difference scheme, First-order nonlinear hyperbolic equations

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
90
Top 10%
Top 10%
Top 10%
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