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On Estimating an Inhomogeneous Kloosterman Sum by the Karatsuba Method

  • N. K. Semenova

摘要

Abstract

In the present paper, a new estimate for a short “inhomogeneous” Kloosterman sum modulo \(q\) whose number of terms does not exceed \(\sqrt{q}\) is obtained. This estimate refines the result of M. A. Korolev (2016).