3 citations · 3 across the 1 of their papers we have counts for
2 papers
math.SG2017
Convexity of singular affine structures and toric-focus integrable Hamiltonian systems
Tudor Ratiu, Christophe Wacheux, Nguyen Tien Zung
This work is devoted to a systematic study of symplectic convexity for integrable Hamiltonian systems with elliptic and focus-focus singularities. A distinctive feature of these sy…
math.SG2011★ 3 cited
Smooth normal forms for integrable hamiltonian systems near a focus-focus singularity
San Vu Ngoc, Christophe Wacheux
We prove that completely integrable systems are normalisable in the C infinity category near focus-focus singularities.