1. Reinforcement of the principal eigenvalue of an elliptic operator

   • Avner Friedman

   OriginalPaper Pages: 1 - 17

2. Invariant sets for systems of partial differential equations II. First-order and elliptic equations

   • Ray Redheffer
   • Wolfgang Walter

   OriginalPaper Pages: 19 - 29

3. A boundary value problem associated with the second painlevé transcendent and the Korteweg-de Vries equation

   • S. P. Hastings
   • J. B. McLeod

   OriginalPaper Pages: 31 - 51

4. Convexity of mean values of non-negative subtemperatures

   • N. A. Watson

   OriginalPaper Pages: 53 - 62

5. On the flow between a rotating disk and a porous disk

   • Alan R. Elcrat

   OriginalPaper Pages: 63 - 68

6. Propagating fronts for competing species equations with diffusion

   • Min Ming Tang
   • Paul C. Fife

   OriginalPaper Pages: 69 - 77

7. The steady state Stefan problem with convection

   • J. R. Cannon
   • Emmanuele DiBenedetto
   • George H. Knightly

   OriginalPaper Pages: 79 - 97