Small divisor problem in the theory of three-dimensional water gravity waves/
Gérard Iooss, Pavel I. Plotnikov.
- Providence, R.I.: American Mathematical Society, 2009.
- vii, 128 p.: ill.; 26 cm.
- Memoirs of the American Mathematical Society, no. 940 0065-9266; .
- Memoirs of the American Mathematical Society; no. 940. .