Volume 29 (2000) no. 4

Table of contents

Nonunique continuation for plane uniformly elliptic equations in Sobolev spaces
p. 731-754
Optimal stability for inverse elliptic boundary value problems with unknown boundaries
p. 755-806
Boundary variation for a Neumann problem
p. 807-821
Lyapunov center theorem for some nonlinear PDE's : a simple proof
p. 823-837
Systèmes fortement hyperboliques 4×4, dimension réduite et symétrie
p. 839-890
Factorization of functions in weighted Bergman spaces
p. 891-903
Prym varieties and the canonical map of surfaces of general type
p. 905-938