Recursion Theory Week: Proceedings of a Conference held in Oberwolfach, West Germany, April 15-21, 1984

Heinz-Dieter Ebbinghaus; Gert H. Muller

ISBN 10: 3540156739 / ISBN 13: 9783540156734

Published by Springer V, 1985

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Bibliographic Details

• Title: Recursion Theory Week: Proceedings of a Conference held in Oberwolfach, West Germany, April 15-21, 1984
• Publisher: Springer V
• Publication Date: 1985
• Language: English
• ISBN 10: 3540156739
• ISBN 13: 9783540156734
• Binding: Paperback
• Edition: International Edition
• Condition: New

About this title

Synopsis

Generators of the recursively enumerable degrees.- Kleene degrees of ultrafilters.- Recursion theory on strongly ?2 inadmissible ordinals.- Applications of the low-basis theorem in arithmetic.- Strong reducibilities in ?- and ?-recursion theory.- Embeddings and extensions of embeddings in the r.e. tt and wtt-degrees.- An immune partition of the ordinals.- An application of ? 2 1 -logic to descriptive set theory.- Probabilistic machines, oracles, and quantifiers.- Minimal polynomial degrees of nonrecursive sets.- Genericity for recursively enumerable sets.- Sets of everywhere singular functions.- Measure, ? 1 0 -classes and complete extensions of PA.- On the ordering of classes in high/low hierarchies.- Generic objects in recursion theory.- The structure of m-degrees.- Some open questions in recursion theory.- Absolute type 2 objects.- Recursion theoretic aspects of the dual ramsey theorem.- Reflection and the priority method in E-recursion theory.- Subrecursive ordinals.