Displaying similar documents to “On addition of two sets of integers”

On addition of two distinct sets of integers

Vsevolod F. Lev, Pavel Y. Smeliansky (1995)

Acta Arithmetica

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What is the structure of a pair of finite integers sets A,B ⊂ ℤ with the small value of |A+B|? We answer this question for addition coefficient 3. The obtained theorem sharpens the corresponding results of G. Freiman.

Embedding lattices in the Kleene degrees

Hisato Muraki (1999)

Fundamenta Mathematicae

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Under ZFC+CH, we prove that some lattices whose cardinalities do not exceed 1 can be embedded in some local structures of Kleene degrees.