1. The Cauchy problem for quasi-linear symmetric hyperbolic systems

   • Tosio Kato

   OriginalPaper Pages: 181 - 205

2. Some continuation and variational methods for positive solutions of nonlinear elliptic eigenvalue problems

   • Michael G. Crandall
   • Paul H. Rabinowitz

   OriginalPaper Pages: 207 - 218

3. Existence theorems, qualitative results and a priori bounds for a class of nonlinear Dirichlet problems

   • Catherine Bandle

   OriginalPaper Pages: 219 - 238

4. An asymptotic theory for a class of weakly nonlinear oscillations

   • H. W. Hoogstraten
   • B. Kaper

   OriginalPaper Pages: 239 - 260

5. A generalization of the method of averaging for systems with two time scales

   • M. Balachandra
   • P. R. Sethna

   OriginalPaper Pages: 261 - 283