1. Gap series and functions of bounded variation

   • Katusi Fukuyama

   OriginalPaper Pages: 175 - 191

2. Determination of jumps in terms of spectral data

   • Qiling Shi
   • Xianliang Shi

   OriginalPaper Pages: 193 - 206

3. Uniqueness of double Walsh series

   • W. R. Wade

   OriginalPaper Pages: 207 - 216

4. On centralizers of standard operator algebras and semisimple H*-algebras

   • Irena Kosi-Ulbl
   • Joso Vukman

   OriginalPaper Pages: 217 - 223

5. On the curvature of a generalization of contact metric manifolds

   • Luigia Di Terlizzi

   OriginalPaper Pages: 225 - 239

6. Oscillation criteria for nonlinear second order differential equations with damping

   • Zhaowen Zheng

   OriginalPaper Pages: 241 - 252

7. Eigenvalue ratios of vibrating strings

   • Márton Kiss

   OriginalPaper Pages: 253 - 259

8. On mappings preserving pentagons

   • S.-M. Jung

   OriginalPaper Pages: 261 - 266