Kalmurzaev Birzhan Seilkhanovich

Publications in Math-Net.Ru

1. On the theory of computably enumerable linear preorders with concatenation
   
   Sibirsk. Mat. Zh., 66:2 (2025),  131–146
2. A note on joins and meets for positive linear preorders
   
   Sib. Èlektron. Mat. Izv., 20:1 (2023),  1–16
3. On universal positive graphs
   
   Sibirsk. Mat. Zh., 64:1 (2023),  98–112
4. Minimal generalized computable numberings and families of positive preorders
   
   Algebra Logika, 61:3 (2022),  280–307
5. Index sets for classes of positive preorders
   
   Algebra Logika, 61:1 (2022),  42–76
6. One-element rogers semilattices in the Ershov hierarchy
   
   Algebra Logika, 60:4 (2021),  433–437
7. Special classes of positive preorders
   
   Sib. Èlektron. Mat. Izv., 18:2 (2021),  1657–1666
8. The structure of computably enumerable preorder relations
   
   Algebra Logika, 59:3 (2020),  293–314
9. Weakly precomplete equivalence relations in the Ershov hierarchy
   
   Algebra Logika, 58:3 (2019),  297–319
10. Rogers semilattices for families of equivalence relations in the Ershov hierarchy
    
    Sibirsk. Mat. Zh., 60:2 (2019),  290–305
11. On dark computably enumerable equivalence relations
    
    Sibirsk. Mat. Zh., 59:1 (2018),  29–40
12. Embeddability of the semilattice $\mathbf{L^0_m}$ in Rogers semilattices
    
    Algebra Logika, 55:3 (2016),  328–340