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Computation of fluxes of conservation laws. (English) Zbl 1193.65155
Author’s abstract: The direct method for the construction of local conservation laws of partial differential equations (PDEs) is a systematic method applicable to a wide class of PDE systems [{\it S. Anco} and {\it G. Bluman}, Eur. J. Appl. Math. 13, No. 5, 567--585 (2002; Zbl 1034.35071)]. According to the direct method one seeks multipliers, such that the linear combination of PDEs of a given system with these multipliers yields a divergence expression. Once local-conservation-law multipliers have been found, one needs to reconstruct the fluxes of the conservation law. In this review paper, common methods of flux computation are discussed, compared, and illustrated by examples. An implementation of these methods in symbolic software is also presented.

65M06Finite difference methods (IVP of PDE)
35L65Conservation laws
35B06Symmetries, invariants, etc. (PDE)
68W30Symbolic computation and algebraic computation
65-02Research monographs (numerical analysis)
Full Text: DOI arXiv
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