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ПросмотрНаучные публикации в Scopus по теме "d.c.e. sets"

ПросмотрНаучные публикации в Scopus по теме "d.c.e. sets"

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  • Downward density of exact degrees 
    Liu J.; Wu G.; Yamaleev M. (2015)
    © 2015, Pleiades Publishing, Ltd. In this paper we study exact d.c.e. degrees, the class of d.c.e. degrees which is strictly between the class of degrees of tops of bubbles and the class of isolated d.c.e. degrees.We show ...
  • Nondensity of double bubbles in the D.C.E. degrees 
    Andrews U.; Kuyper R.; Lempp S.; Soskova M.; Yamaleev M. (2017)
    © Springer International Publishing AG 2017.In this paper, we show that the so-called “double bubbles” are not downward dense in the d.c.e. degrees. Here, a pair of d.c.e. degrees d1 > d2 > 0 forms a double bubble if all ...
  • On a problem of Ishmukhametov 
    Fang C.; Wu G.; Yamaleev M. (2013)
    Given a d.c.e. degree d, consider the d.c.e. sets in d and the corresponding degrees of their Lachlan sets. Ishmukhametov provided a systematic investigation of such degrees, and proved that for a given d.c.e. degree d > ...

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