Symmetry group analysis and invariant solutions of hydrodynamic-type systems
2004 ◽
Vol 2004
(10)
◽
pp. 487-534
◽
Keyword(s):
We study point and higher symmetries of systems of the hydrodynamic type with and without an explicit dependence ont,x. We consider such systems which satisfy the existence conditions for an infinite-dimensional group of hydrodynamic symmetries which implies linearizing transformations for these systems. Under additional restrictions on the systems, we obtain recursion operators for symmetries and use them to construct infinite discrete sets of exact solutions of the studied equations. We find the interrelation between higher symmetries and recursion operators. Two-component systems are studied in more detail thann-component systems. As a special case, we consider Hamiltonian and semi-Hamiltonian systems of Tsarëv.
Keyword(s):
Keyword(s):
1989 ◽
Vol 44
(4)
◽
pp. 257-261
◽
Keyword(s):
2013 ◽
Vol 368
(1622)
◽
pp. 20120260
◽