Let A be a finite subset of some normed division algebra over IR with cardinality |A|. We prove that either the sum set or the product set of A has cardinality |A|1+δ for some δ > 0.
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机译:设A为基数为| A |的IR上某些范数除法的有限子集。我们证明,对于某些δ> 0,A的总集或乘积集都具有基数| A | 1 +δ。
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