1. Infinite arithmetic formulas and the reflection principle

   • N. V. Belyakin
   • S. P. Odintsov

   OriginalPaper Pages: 147 - 154

2. Infinite commensurable hyperbolic groups are bi-Lipschitz equivalent

   • O. V. Bogopolskii

   OriginalPaper Pages: 155 - 163

3. The lattice complexity of quasivarieties of graphs and endographs

   • A. V. Kravchenko

   OriginalPaper Pages: 164 - 168

4. Transfer theorems and the algebra of modal operators

   • V. A. Lyubetsky

   OriginalPaper Pages: 169 - 181

5. A characterization of finite nonsimple groups by the set of orders of their elements

   • V. D. Mazurov

   OriginalPaper Pages: 182 - 192

6. A fully invariant ideal of alternative algebras

   • V. T. Filippov

   OriginalPaper Pages: 193 - 203

7. Completel-groupoids and their prime spectra

   • G. Khadzhiev
   • T. M. Shamilev

   OriginalPaper Pages: 204 - 211