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Abstract
In this paper, we study the product and sum-product graphs defined over the residue ring mod m. We show that all (or almost all) systems of dot-product equations are solvable in any sufficiently large subset ℰ ⊂ ℤmd. We also prove some results on sum-product estimates in ℤm.
MSC: 15A15
Funding source: Vietnam National Foundation for Science and Technology Development
Award Identifier / Grant number: 101.01-2011.28
Received: 2012-12-12
Revised: 2013-2-25
Published Online: 2013-4-30
Published in Print: 2015-5-1
© 2015 by De Gruyter