1. On the extrapolation of quasi-subadditive singular operators from certain classes

   • Sergey Ajiev

   OriginalPaper Pages: 1 - 24

2. Fejér means of  functions on noncommutative Vilenkin groups with respect to the character system

   • György Gát

   OriginalPaper Pages: 25 - 48

3. Nelineinaya approksimatsiya po sisteme Khaara i modifikatsii funktsii

   • M. G. Grigoryan
   • S. L. Gogyan

   OriginalPaper Pages: 49 - 80