Volume 59 (1993) no. 1

Table of contents

Les résonances d'un trou noir de Schwarzschild
p. 3-68
Geometry of the Kepler system in coherent states approach
p. 69-89
Floquet operators without absolutely continuous spectrum
p. 91-97
The four positive vortices problem : regions of chaotic behavior and the non-integrability
p. 99-115