Search Results - Fejer, Peter A.

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  1. 1

    Degrees of unsolvability by Ambos-Spies, Klaus (Author) , Fejer, Peter A. (Author) ,


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  2. 2

    Collapsing polynomial-time degrees by Ambos-Spies, Klaus (Author) , Bentzien, Levke (Author) , Fejer, Peter A. (Author) , Merkle, Wolfgang (Author) , Stephan, Frank (Author) ,


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  3. 3

    Decidability of the two-quantifier theory of the recursively enumerable weak truth-table degrees and other distributive upper semi-lattices by Ambos-Spies, Klaus (Author) , Fejer, Peter A. (Author) , Lempp, Steffen (Author) , Lerman, Manuel (Author) ,


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  4. 4

    Embedding distributive lattices preserving 1 below a nonzero recursively enumerable turing degree by Ambos-Spies, Klaus (Author) , Decheng, Ding (Author) , Fejer, Peter A. (Author) ,


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