1. Countable models of superstable theories

   • E. R. Baisalov

   OriginalPaper Pages: 181 - 192

2. Hereditary and semihereditary rings without nilpotent elements

   • R. Gonchigdorzh

   OriginalPaper Pages: 192 - 203

3. Recursive-combinatorial properties of subsets of the natural numbers

   • A. N. Degtev

   OriginalPaper Pages: 204 - 210

4. Automorphisms of unipotent subgroups of chevalley groups

   • V. M. Levchuk

   OriginalPaper Pages: 211 - 224

5. Intersection of noncharacterizable varieties of lattices

   • Zh. A. Omarov

   OriginalPaper Pages: 224 - 228

6. Fundamental group of a 3-manifold

   • D. G. Khramtsov

   OriginalPaper Pages: 228 - 231

7. Undecidable properties of extensions of the logic of provability

   • A. V. Chagrov

   OriginalPaper Pages: 231 - 243

8. A group in a group

   • David Evans
   • Anand Pillay
   • Bruno Poizat

   OriginalPaper Pages: 244 - 252