G. Sohos
发表
Is the Hamiltonian
$$H = (\dot x^2 + \dot y^2 + x^2 y^2 )/2$$
completely chaotic?completely chaotic?
T. Bountis,
T. Bountis,
G. Sohos,
1989
.
M. Gribbons,
A. Cangellaris,
A.C. Cangellaris,
1993,
IEEE Microwave and Guided Wave Letters.