Tome 67 (1997) no. 1

Sommaire

The essential spectrum of relativistic multi-particle operators
p. 1-28
Remarks on relativistic Schrödinger operators and their extensions
p. 29-39
Existence of Rayleigh resonances exponentially close to the real axis
p. 41-57
On the semi-classical approximation of the solution of the Heisenberg equation with spin
p. 59-76
Marches pseudo-aléatoires issues de substitutions : aspects statistiques
p. 77-89
2-magnon scattering in the Heisenberg model
p. 91-107