Nonisolated degrees and the jump operator

DOI10.1016/S0168-0072(01)00117-8zbMath1033.03027MaRDI QIDQ1849858

Guohua Wu

Publication date: 2 December 2002

Published in: Annals of Pure and Applied Logic (Search for Journal in Brave)

zbMATH Keywords

isolationrecursively enumerable setscomputably enumerable setsTuring degreehigh degreeslow degreesd.r.e.\ degrees

Mathematics Subject Classification ID

Recursively (computably) enumerable sets and degrees (03D25) Other Turing degree structures (03D28)

Related Items (1)

Bi-isolation in the d.c.e. degrees

Cites Work

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• Weak density and cupping in the d-r.e. degrees
• The d.r.e. degrees are not dense
• Isolated d.r.e. degrees are dense in r.e. degree structure
• Isolation and the high/low hierarchy
• The recursively enumerable degrees are dense
• Isolation and the Jump Operator
• D.R.E. Degrees and the Nondiamond Theorem
• Relative enumerability in the difference hierarchy
• Cupping the Recursively Enumerable Degrees by D.R.E. Degrees
• The Isolated D. R. E. Degrees are Dense in the R. E. Degrees

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