Volume 52 (1990) no. 3

Table of contents

Heisenberg's picture and non commutative geometry of the semi classical limit in quantum mechanics
p. 175-235
How small is the phase space in quantum field theory ?
p. 237-257
The Ising transducer
p. 259-265
Occurence times of rare events for mixing dynamical systems
p. 267-281
Some limit ratio theorem related to a real endomorphism in case of a neutral fixed point
p. 283-301