1. Degrees of denumerability reducibilities

   • S. D. Zakharov

   OriginalPaper Pages: 75 - 85

2. Finite-dimensional right alternative algebras that do not generate finitely based varieties

   • I. M. Isaev

   OriginalPaper Pages: 86 - 96

3. The variety of algebras of type (−1, 1)

   • S. V. Pchelintsev

   OriginalPaper Pages: 97 - 108

4. Equations in free topoboolean algebra

   • V. V. Rybakov

   OriginalPaper Pages: 109 - 127

5. Hierarchies of torsion-free Abelian groups

   • N. G. Khisamiev

   OriginalPaper Pages: 128 - 142

6. Finitep-groups that are close to groups of prime period

   • E. I. Khukhro

   OriginalPaper Pages: 143 - 153