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» Programming with enumerable sets of structures
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AML
2010
91views more  AML 2010»
13 years 5 months ago
The limitations of cupping in the local structure of the enumeration degrees
Abstract We prove that a sequence of sets containing representatives of cupping partners for every nonzero 0 2 enumeration degree cannot have a 0 2 enumeration. We also prove that ...
Mariya Ivanova Soskova
COMPGEOM
1991
ACM
13 years 9 months ago
A Pivoting Algorithm for Convex Hulls and Vertex Enumeration of Arrangements and Polyhedra
We present a new pivot-based algorithm which can be used with minor modification for the enumeration of the facets of the convex hull of a set of points, or for the enumeration o...
David Avis, Komei Fukuda
APAL
1998
121views more  APAL 1998»
13 years 5 months ago
Computably Enumerable Sets and Quasi-Reducibility
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 ...
Rodney G. Downey, Geoffrey LaForte, André N...
WCRE
1996
IEEE
13 years 9 months ago
Identifying Enumeration Types Modeled with Symbolic Constants
An important challenge in software reengineering is to encapsulate collections of related data that, due to the absence of appropriate constructs for encapsulation in legacy progr...
John M. Gravley, Arun Lakhotia
CIE
2005
Springer
13 years 11 months ago
Computably Enumerable Sets in the Solovay and the Strong Weak Truth Table Degrees
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...
George Barmpalias