1. On patched variational principles with application to elliptic and mixed elliptic-hyperbolic problems

   • George J. Fix
   • Morton E. Gurtin

   OriginalPaper Pages: 259 - 271

2. Linear algorithms for testing the sign stability of a matrix and for findingZ-maximum matchings in acyclic graphs

   • Victor Klee
   • Pauline van den Driessche

   OriginalPaper Pages: 273 - 285

3. Optimization under nonnegativity constraints

   • Lazaros P. Mavrides

   OriginalPaper Pages: 287 - 293

4. Evaluation de l'erreur dans la méthode des élements finis

   • M. Atteia

   OriginalPaper Pages: 295 - 306

5. The Tchebychev iteration for nonsymmetric linear systems

   • Thomas A. Manteuffel

   OriginalPaper Pages: 307 - 327

6. Regularisierung schlecht gestellter Probleme durch Projektionsverfahren

   • Frank Natterer

   OriginalPaper Pages: 329 - 341

7. On the relation between quadratic termination and convergence properties of minimization algorithms

   • J. Stoer

   OriginalPaper Pages: 343 - 366