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The weak density of properly d-r.e. branching degree in the d-r.e. degrees

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Abstract

It is proved that for any r.e. degreesv <u, there exists a properly d-r.e. degreec such thatc is a branching degree andv <c <u.

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References

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Authors and Affiliations

  1. Department of Mathematics, Nanjing University, 210008, Nanjing, China

    Lu Hong & Ding Decheng

Authors
  1. Lu Hong
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  2. Ding Decheng
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Additional information

Project supported by the National Natural Science Foundation of China (Grant No. 19771045) and National 863 Hi-Tech R&D Programme.

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Lu, H., Ding, D. The weak density of properly d-r.e. branching degree in the d-r.e. degrees. Sci. China Ser. A-Math. 42, 691–698 (1999). https://doi.org/10.1007/BF02878987

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  • DOI: https://doi.org/10.1007/BF02878987

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