1. A Generalization of Fibonacci Groups

   • V. G. Bardakov
   • A. Yu. Vesnin

   OriginalPaper Pages: 73 - 91

2. The Lattice of Quasivarieties of Torsion-Free Metabelian Groups

   • A. I. Budkin

   OriginalPaper Pages: 92 - 104

3. Degree Spectra of Relations on Boolean Algebras

   • S. S. Goncharov
   • R. G. Downey
   • D. R. Hirschfeldt

   OriginalPaper Pages: 105 - 111

4. E ^*-Stable Theories

   • E. A. Palyutin

   OriginalPaper Pages: 112 - 120

5. Initial Segments in Rogers Semilattices of \(\Sigma _n^0 \)-Computable Numberings

   • S. Yu. Podzorov

   OriginalPaper Pages: 121 - 129

6. A Criterion for Non-Simplicity of Groups with Involutions

   • A. M. Popov

   OriginalPaper Pages: 130 - 135

7. Varieties Defined by Permutations

   • D. M. Smirnov

   OriginalPaper Pages: 136 - 146