1. A note on periodic solutions of a differential equation with two parameters

   • Hsin Chu

   OriginalPaper Pages: 97 - 104

2. Binäres goldbachproblem mit einschränkung an die summanden

   • Gunter Dufner

   OriginalPaper Pages: 105 - 134

3. Preserving concavity in initial-boundary value problems of parabolic type and in its numerical solution

   • I. Faragó
   • T. Pfeil

   OriginalPaper Pages: 135 - 139

4. Weakly absolute retracts for bicompacts

   • F. S. Mahmoud

   OriginalPaper Pages: 141 - 143

5. On translations of double rays in graphs

   • Norbert Polat
   • Mark E. Watkins

   OriginalPaper Pages: 145 - 154

6. Some remarks on a problem of J. D. Monk

   • S. Shelah
   • L. Soukup

   OriginalPaper Pages: 155 - 163

7. On an inequality of Seitz

   • Gh. Toader

   OriginalPaper Pages: 165 - 170