146 search results - page 1 / 30 » Computably Enumerable Sets and Quasi-Reducibility |
APAL
1998
13 years 4 months ago
1998
We consider the computably enumerable sets under the relation of Qreducibility. We first give several results comparing the upper semilattice of c.e. Q-degrees, RQ, ≤Q , under ...
APAL
2006
13 years 5 months ago
2006
Abstract. We show that the identity bounded Turing degrees of computably enumerable sets are not dense.
APAL
2010
13 years 5 months ago
2010
The computable Lipschitz reducibility was introduced by Downey, Hirschfeldt and LaForte under the name of strong weak truthtable reducibility [6]. This reducibility measures both t...
CIE
2005
Springer
13 years 10 months ago
2005
Springer
The strong weak truth table reducibility was suggested by Downey, Hirschfeldt, and LaForte as a measure of relative randomness, alternative to the Solovay reducibility. It also occ...
BSL
2008
13 years 5 months ago
2008
The goal of this paper is to announce there is a single orbit of the c.e. sets with inclusion, E, such that the question of membership in this orbit is 1 1-complete. This result an...