I want to study about Symplectic group actions and moment map, especially Hamiltonian Group Actions. Can you help me with some concretely example of Hamiltonian group actions ? Where can I find some exemple? 



Hamiltonian group actions - examples
I think these <http://www.math.ist.utl.pt/~acannas/Books/lsg.pdf> are very good notes, and freely available. 


