Triple sums of Kloosterman sums and the discrepancy of modular inverses
Abstract
We investigate the distribution of modular inverses modulo positive integers c in a large interval. We provide upper and lower bounds for their box, ball and isotropic discrepancy, thereby exhibiting some deviations from random point sets. The analysis is based, among other things, on a new bound for a triple sum of Kloosterman sums.
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