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Realizations of Real Low-Dimensional Lie Algebras

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arxiv math-ph/0301029 v7 pith:66ULPISR submitted 2003-01-21 math-ph gr-qcmath.MPmath.RTnlin.SI

classification math-phgr-qcmath.MPmath.RTnlin.SI
keywords algebrasrealrealizationsclassificationlow-dimensionalamendsarbitraryautomorphisms
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Using a new powerful technique based on the notion of megaideal, we construct a complete set of inequivalent realizations of real Lie algebras of dimension no greater than four in vector fields on a space of an arbitrary (finite) number of variables. Our classification amends and essentially generalizes earlier works on the subject. Known results on classification of low-dimensional real Lie algebras, their automorphisms, differentiations, ideals, subalgebras and realizations are reviewed.

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Cited by 1 Pith paper

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  1. Extended symmetry analysis of two-dimensional degenerate Burgers equation

    math.AP 2019-08 accept novelty 7.0 of 10

    For the degenerate Burgers equation u_t + u u_x - u_yy = 0, all generalized symmetries reduce to Lie symmetries, and conservation laws are in one-to-one correspondence with solutions of the backward heat equation.

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