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APAL
2002
77views more  APAL 2002»
13 years 5 months ago
Degree spectra and computable dimensions in algebraic structures
Whenever a structure with a particularly interesting computability-theoretic property is found, it is natural to ask whether similar examples can be found within well-known classe...
Denis R. Hirschfeldt, Bakhadyr Khoussainov, Richar...
CIE
2009
Springer
13 years 9 months ago
Spectra of Algebraic Fields and Subfields
An algebraic field extension of Q or Z/(p) may be regarded either as a structure in its own right, or as a subfield of its algebraic closure F (either Q or Z/(p)). We consider the ...
Andrey Frolov, Iskander Sh. Kalimullin, Russell Mi...
CIE
2007
Springer
13 years 11 months ago
Some Notes on Degree Spectra of the Structures
Iskander Sh. Kalimullin
APAL
2010
68views more  APAL 2010»
13 years 5 months ago
Spaces of orders and their Turing degree spectra
We investigate computability theoretic and topological properties of spaces of orders on computable orderable groups. A left order on a group G is a linear order of the domain of ...
Malgorzata A. Dabkowska, Mieczyslaw K. Dabkowski, ...
CIE
2005
Springer
13 years 11 months ago
Minimal Pairs and Quasi-minimal Degrees for the Joint Spectra of Structures
Two properties of the Co-Spectrum of the Joint Spectrum tely many abstract structures are presented - a Minimal Pair type theorem and the existence of a Quasi-Minimal degree with r...
Alexandra A. Soskova