2012
DOI: 10.1002/mma.2584
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On the connections between symmetries and conservation rules of dynamical systems

Abstract: The strict connection between Lie point-symmetries of a dynamical system and its constants of motion is discussed and emphasized, through old and new results. It is shown in particular how the knowledge of a symmetry of a dynamical system can allow to obtain conserved quantities which are invariant under the symmetry. In the case of Hamiltonian dynamical systems it is shown that, if the system admits a symmetry of "weaker" type (specifically, a λ or a Λ-symmetry), then the generating function of the symmetry i… Show more

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Cited by 4 publications
(2 citation statements)
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“…The relation between twisted symmetries (in particular, λ-symmetries), first integrals and integrating factors [4,5,12,13,28,36,48,49], as well as that between twisted symmetries (in particular, λ-symmetries) and Jacobi Last Multiplier [51,53] has been studied by several authors .…”
Section: Other Topicsmentioning
confidence: 99%
“…The relation between twisted symmetries (in particular, λ-symmetries), first integrals and integrating factors [4,5,12,13,28,36,48,49], as well as that between twisted symmetries (in particular, λ-symmetries) and Jacobi Last Multiplier [51,53] has been studied by several authors .…”
Section: Other Topicsmentioning
confidence: 99%
“…Especially, several relations among λ ‐symmetries and first integrals for ordinary differential equations are studied in previous studies and references therein. For applications of λ ‐symmetries to derive first integrals or conservation laws of dynamical systems or Hamiltonian systems, one can see previous studies for example. By a geometrical characterization of λ ‐prolongation of vector fields, λ ‐symmetries have been extended to partial differential equations, leading to μ ‐symmetries that can also be used to derive conservation laws of the equations …”
Section: Introductionmentioning
confidence: 99%