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Proceedings of the American Mathematical Society
Proceedings of the American Mathematical Society
ISSN 1088-6826(online) ISSN 0002-9939(print)


On quadratic residues and nonresidues in difference sets modulo $ m$

Author: J. Fabrykowski
Journal: Proc. Amer. Math. Soc. 122 (1994), 325-331
MSC: Primary 11A07; Secondary 11B75
MathSciNet review: 1205491
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Abstract: Let $ m > 1$, and consider a set $ \mathcal{A} = \{ {a_i}\} $ of residues modulo m such that $ {a_i}$ and $ {a_i} - {a_j}$ for all i and j with $ i \ne j$ are quadratic residues (nonresidues) modulo m. We investigate the estimation of the maximal cardinality of such a set $ \mathcal{A}$ for various moduli m.

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PII: S 0002-9939(1994)1205491-1
Article copyright: © Copyright 1994 American Mathematical Society