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Algorithmic reducibilities of algebraic structures. (English) Zbl 1268.03041

The paper under review contains examples that distinguish algorithmic reducibilities of algebraic structures which are based on the mass problems of structure presentability.

MSC:

03C57 Computable structure theory, computable model theory
03C15 Model theory of denumerable and separable structures
03D30 Other degrees and reducibilities in computability and recursion theory