We prove some results on the Delta(2)(0) e-degrees. We show that 0(e)' splits in the Delta(2)(0) e-degrees above any incomplete E-2(0) e-degree; on the other hand, one can find a splitting of 0(e)' into Delta(2)(0) e-degrees b and d, such that 0(e)' not equal b boolean OR c, for any omega-r, e. e-degree c < 0(e)'.

Arslanov, M., Sorbi, A. (1999). Relative splittings of 0_e' in the Delta_2^0 enumeration degrees. In Logic Colloquium '98 (pp.44-56). Natick, Massachusetts : Association for Symbolic Logic, A.K. Ltd.

Relative splittings of 0_e' in the Delta_2^0 enumeration degrees

Sorbi, Andrea
1999-01-01

Abstract

We prove some results on the Delta(2)(0) e-degrees. We show that 0(e)' splits in the Delta(2)(0) e-degrees above any incomplete E-2(0) e-degree; on the other hand, one can find a splitting of 0(e)' into Delta(2)(0) e-degrees b and d, such that 0(e)' not equal b boolean OR c, for any omega-r, e. e-degree c < 0(e)'.
1999
1-56881-114-4
1-56881-113-6
Arslanov, M., Sorbi, A. (1999). Relative splittings of 0_e' in the Delta_2^0 enumeration degrees. In Logic Colloquium '98 (pp.44-56). Natick, Massachusetts : Association for Symbolic Logic, A.K. Ltd.
File in questo prodotto:
File Dimensione Formato  
relative-splittings.pdf

non disponibili

Descrizione: Articolo
Tipologia: PDF editoriale
Licenza: NON PUBBLICO - Accesso privato/ristretto
Dimensione 3.38 MB
Formato Adobe PDF
3.38 MB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11365/1082953