1. Divergence of the (C, 1) Means of d-dimensional Walsh-Fourier Series

   • G. Gát

   OriginalPaper Pages: 157 - 171

2. Criteria for the Boundedness and Compactness of Operators with Power-Logarithmic Kernels

   • V. Kokilashvili
   • A. Meskhi

   OriginalPaper Pages: 173 - 185

3. Paley Type Inequalities for Several Parameter Vilenkin Systems

   • P. Simon
   • F. Weisz

   OriginalPaper Pages: 187 - 199

4. Approximation by Partial Sums of Fourier Series and the Best Approximation of Certain Function Classes

   • A.M. Shvetsova

   OriginalPaper Pages: 201 - 222

5. Weak Sequential Completeness of β-duals of Double Sequence Spaces

   • Maria Zeltser

   OriginalPaper Pages: 223 - 238