Nonhemimaximal degrees and the high/low hierarchy

After showing the downwards density of nonhemimaximal degrees, Downey and Stob continued to prove that the existence of a low₂, but not low, nonhemimaximal degree, and their proof uses the fact that incomplete m-topped degrees are low₂ but not low. As commented in their paper, the construction of su...

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Bibliographic Details
Main Authors: Fang, Chengling, Wu, Guohua
Other Authors: School of Physical and Mathematical Sciences
Format: Article
Language:English
Published: 2013
Subjects:
Online Access:https://hdl.handle.net/10356/99244
http://hdl.handle.net/10220/17146
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Institution: Nanyang Technological University
Language: English