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Kloosterman Sums and a Problem of D. H. Lehmer
A classical problem of D. H. Lehmer suggests the study of distributions of elements of Z / p Z of opposite parity to the multiplicative inverse mod p ....
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Character sums over squarefree and squarefull numbers
We give upper bounds for character sums over squarefree and squarefull numbers sharper than the prior known in the literature. As an application, we...
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Modular hyperbolas
We give a survey of a variety of recent results about the distribution and some geometric properties of points ( x , y ) on modular hyperbolas
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Twins of k-free numbers in arithmetic progressions
We give a new upper bound of Barban–Davenport–Halberstam type for twins of k -free numbers in arithmetic progressions.
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Partitions into two Lehmer numbers
We prove an asymptotic formula for the number of representations of an integer as sum of two Lehmer numbers which implies that under some natural...
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On a Problem of D. H. Lehmer
The main purpose of this paper is to use the Fourier expansion for character sums and the mean value theorem of Dirichlet L–functions to study the...
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Arithmetic Progressions, Prime Numbers, and Squarefree Integers
In this paper we establish the distribution of prime numbers in a given arithmetic progression
p ≡l for which ap + b is squarefree. -
On a Problem of D. H. Lehmer and General Kloosterman Sums
Let q ≥ 3 be an odd number, a be any fixed positive integer with ( a, q ) = 1. For each integer b with 1 ≤ b < q and ( b, q ) = 1, it is clear that there...
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Value distribution of g-additive functions
Necessary and sufficient conditions are given that answer the following questions: When does an integer valued (real valued) g -additive function have...
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A Binary Additive Problem of Erdös and the Order of 2 mod p2
We show that the problem of representing every odd positive integer as the sum of a squarefree number and a power of 2, is strongly related to the...
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A Binary Additive Problem of Erdős and the Order of 2 mod p 2
We show that the problem of representing every odd positive integer as the sum of a squarefree number and a power of 2, is strongly related to the...