We show how the Lie group analysis method can be used in order to obtain first integrals of any system of ordinary differential equations. The method of reduction/increase of order developed by Nucci [J. Math. Phys. 37, 1772-1775 (1996)] is essential. Noether's theorem is neither necessary nor considered. The most striking example we present is the relationship between Lie group analysis and the famous first integral of the Kowalevski top. (C) 2003 American Institute of Physics.
Marcelli M., NUCCI, M.C. (2003). Lie point symmetries and first integrals: the Kowalevsky top. JOURNAL OF MATHEMATICAL PHYSICS, 44(5), 2111-2132 [10.1063/1.1561157].
Lie point symmetries and first integrals: the Kowalevsky top
NUCCI, Maria Clara
2003
Abstract
We show how the Lie group analysis method can be used in order to obtain first integrals of any system of ordinary differential equations. The method of reduction/increase of order developed by Nucci [J. Math. Phys. 37, 1772-1775 (1996)] is essential. Noether's theorem is neither necessary nor considered. The most striking example we present is the relationship between Lie group analysis and the famous first integral of the Kowalevski top. (C) 2003 American Institute of Physics.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
