Volume 6 (1989) no. 6

Table of contents

Semidifferentials, quadratic forms and fully nonlinear elliptic equations of second order
p. 419-435
An asymptotic expansion for the solution of the generalized Riemann problem. Part 2 : application to the equations of gas dynamics
p. 437-480
The Stefan problem in heterogeneous media
p. 481-501
Equivariant harmonic maps between manifolds with metrics of (p,q)-signature
p. 503-524