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Congruences involving product of intervals and sets with small multiplicative doubling modulo a prime and applications
In this paper we obtain new upper bound estimates for the number of solutions of the congruence $$\begin{equation} x\equiv y r\pmod p;\quad x,y\in \mathbb{N},\quad x,y\le H,\quad r\in \mathcal{U}, \end{equation}$$ for certain ranges of H and |${\mathcal U}$|, where ${\mathcal U}$ is a subset of the...
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Published in: | Mathematical proceedings of the Cambridge Philosophical Society 2016-05, Vol.160 (3), p.477-494 |
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Main Authors: | , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | In this paper we obtain new upper bound estimates for the number of solutions of the congruence
$$\begin{equation}
x\equiv y r\pmod p;\quad x,y\in \mathbb{N},\quad x,y\le H,\quad r\in \mathcal{U},
\end{equation}$$
for certain ranges of H and |${\mathcal U}$|, where ${\mathcal U}$ is a subset of the field of residue classes modulo p having small multiplicative doubling. We then use these estimates to show that the number of solutions of the congruence
$$\begin{equation}
x^n\equiv \lambda\pmod p; \quad x\in \mathbb{N}, \quad L |
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ISSN: | 0305-0041 1469-8064 |
DOI: | 10.1017/S0305004115000808 |