Author:
Liu Jiang,Wang Shenling,Wu Guohua
Publisher
Springer Science and Business Media LLC
Reference9 articles.
1. Cenzer, Douglas, LaForte, Geoffrey, Wu, Guohua: The nonisolating degrees are nowhere dense in the computably enumeralbe degrees (to appear)
2. Cooper S.B., Lempp S., Watson P.: Weak density and cupping in the d.r.e. degrees. Israel J. Math. 67(2), 137–152 (1989)
3. Kaddah D.: Infima in the d.r.e. degrees. Ann. Pure Appl. Log. 62(3), 207–263 (1993)
4. Kleene S.C., Post Emil L.: The upper semi-lattice of degrees of recursive unsolvability. Ann. of Math. 59(2), 379–407 (1954)
5. Lachlan A.H.: Lower bounds for pairs of recursively enumerable degrees. Proc. London Math. Soc. 16(3), 537–569 (1966)