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  1. 1988

  2. Ershov hierarchy and the t-jump

    Selivanov, V. L., 1 Jul 1988, In: Algebra and Logic. 27, 4, p. 292-301 10 p.

    Research output: Contribution to journal › Article › peer-review

  3. Algorithmic complexity of algebraic systems

    Selivanov, V. L., 1 Dec 1988, In: Mathematical Notes of the Academy of Sciences of the USSR. 44, 6, p. 944-950 7 p.

    Research output: Contribution to journal › Article › peer-review

  4. 1989

  5. Application of precomplete enumerations to tabular-type degrees and index sets

    Selivanov, V. L., 1 Jan 1989, In: Algebra and Logic. 28, 1, p. 51-56 6 p.

    Research output: Contribution to journal › Article › peer-review

  6. Linear groups generated by one-parameter groups of one-dimensional transformations

    Vavilov, N. A., 28 Feb 1989, In: Russian Mathematical Surveys. 44, 1, p. 265-266 2 p.

    Research output: Contribution to journal › Article › peer-review

  7. Limit sets of trajectories of regions in dynamical systems

    Pilyugin, S. Y., Jul 1989, In: Functional Analysis and its Applications. 23, 3, p. 242-243 2 p.

    Research output: Contribution to journal › Article › peer-review

  8. Arithmetic Hierarchy and ideals of enumerated Boolean algebras

    Odintsov, S. P. & Selivanov, V. L., 1 Nov 1989, In: Siberian Mathematical Journal. 30, 6, p. 952-960 9 p.

    Research output: Contribution to journal › Article › peer-review

  9. 1990

  10. A note on the subnormal structure of general linear groups

    Vavilov, N. A., 1990, In: Mathematical Proceedings of the Cambridge Philosophical Society. 107, 2, p. 193-196 4 p.

    Research output: Contribution to journal › Article › peer-review

  11. Index sets of classes of hyper-hypersimple sets

    Selivanov, V. L., 1 Mar 1990, In: Algebra and Logic. 29, 2, p. 155-168 14 p.

    Research output: Contribution to journal › Article › peer-review

  12. 1991

  13. Refined hierarchy of formulas

    Selivanov, V. L., 1 Sep 1991, In: Algebra and Logic. 30, 5, p. 368-378 11 p.

    Research output: Contribution to journal › Article › peer-review

  14. Fine hierarchy and definable index sets

    Selivanov, V. L., 1 Nov 1991, In: Algebra and Logic. 30, 6, p. 463-475 13 p.

    Research output: Contribution to journal › Article › peer-review

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