Abstract
Let ℤq be a complete residue system modulo an odd integer q ≥ 3. The main purpose of this paper is to give an asymptotic formula for the number of representations of an element n ∈ ℤq as sum of two classical Lehmer numbers in ℤq. In addition, we make explicit the known expression for the number of the classical Lehmer numbers.
Funding statement: This work is supported by National Natural Science Foundation of China (12471006, 12371007) and Shaanxi Fundamental Science Research Project for Mathematics and Physics (Grant No. 22JSY007).
(Communicated by István Gaál)
References
[1] Apostol, T. M.: Introduction to Analytic Number Theory, Springer-Verlag/New York, 1976.10.1007/978-1-4757-5579-4Search in Google Scholar
[2] Bourgain, J.—Cochrane, T.—Paulhus, J.—Pinner, C.: On the parity of kth powers mod p: A generalization of a problem of Lehmer, Acta Arith. 147 (2011), 173–203.10.4064/aa147-2-6Search in Google Scholar
[3] Cohen, S. D.—Trudgain, T.: Lehmer numbers and primitive roots modulo a prime, J. Number Theory 203 (2019), 68–91.10.1016/j.jnt.2019.03.004Search in Google Scholar
[4] Estermann, T.: On Kloosterman’s sum, Mathematika 8 (1961), 83–86.10.1112/S0025579300002187Search in Google Scholar
[5] Guy, R. K.: Unsolved Problems in Number Theory, 3rd ed., Springer-Verlag/NewYork, 2004.10.1007/978-0-387-26677-0_2Search in Google Scholar
[6] Han, D.—Xu, Z. F.—Yi, Y.—Zhang, T. P.: A note on high-dimensional D. H. Lehmer problem, Taiwanese J. Math. 25 (2021), 1137–1157.10.11650/tjm/210705Search in Google Scholar
[7] Lu, Y. M.—Yi, Y.: On the generalization of the D. H. Lehmer problem, Acta Math. Sin. (Engl. Ser.) 25 (2009), 1269–1274.10.1007/s10114-009-7652-3Search in Google Scholar
[8] Lu, Y. M.—Yi, Y.: Partitions involving D. H. Lehmer numbers, Monatsh. Math. 159 (2010), 45–58.10.1007/s00605-008-0049-zSearch in Google Scholar
[9] Louboutin, S. R.— Rivat, J.—Sarkozy, A.: On a problem of D. H. Lehmer, Proc. Amer. Math. Soc. 135 (2007), 969–975.10.1090/S0002-9939-06-08558-3Search in Google Scholar
[10] Shparlinski, I. E.: On a generalisation of a Lehmer problem, Math. Z. 263 (2009), 619–631.10.1007/s00209-008-0434-2Search in Google Scholar
[11] Shparlinski, I. E.—Winterhof, A.: Partitions into two Lehmer numbers, Monatsh. Math. 160 (2010), 429–441.10.1007/s00605-009-0130-2Search in Google Scholar
[12] Xi, P.—Yi, Y.: Generalized D. H. Lehmer problem over short intervals, Glasg. Math. J. 53 (2011), 293–299.10.1017/S0017089510000704Search in Google Scholar
[13] Xu, Z. F.—Zhang, W. P.: On a problem of D. H. Lehmer over short intervals, J. Math. Anal. Appl. 320 (2006), 756–770.10.1016/j.jmaa.2005.07.054Search in Google Scholar
[14] Xu, Z. F.—Zhang, T. P.: High-dimensional D. H. Lehmer problem over short intervals, Acta Math. Sin. (Engl. Ser.) 30 (2014), 213–228.10.1007/s10114-014-3324-zSearch in Google Scholar
[15] Zhang, H.—Zhang, W. P.: Some new sums related to D. H. Lehmer problem, Czechoslovak Math. J. 65 (2015), 915–922.10.1007/s10587-015-0217-ySearch in Google Scholar
[16] Zhang, W. P.: On a problem of D. H. Lehmer and its generalization, Compositio Math. 86 (1993), 307–316.Search in Google Scholar
[17] Zhang, W. P.: A problem of D. H. Lehmer and its generalization II, Compositio Math. 91 (1994), 47–56.Search in Google Scholar
[18] Zhang, W. P.—Xu, Z. B.—Yi, Y.: A problem of D.H. Lehmer and its mean square value formula, J. Number Theory 103 (2003), 197–213.10.1016/S0022-314X(03)00113-6Search in Google Scholar
© 2025 Mathematical Institute Slovak Academy of Sciences
Articles in the same Issue
- Generalized Sasaki mappings in d0-Algebras
- On a theorem of Nathanson on Diophantine approximation
- Constructing infinite families of number fields with given indices from quintinomials
- Partitions into two Lehmer numbers in ℤq
- Fundamental systems of solutions of some linear differential equations of higher order
- On k-Circulant matrices involving the Lucas numbers of even index
- Explicit formulae for the Drazin inverse of the sum of two matrices
- On nonoscillation of fractional order functional differential equations with forcing term and distributed delays
- Novel generalized tempered fractional integral inequalities for convexity property and applications
- Convergence of α-Bernstein-Durrmeyer operators about a collection of measures
- The problem of finding eigenvalues and eigenfunctions of boundary value problems for an equation of mixed type
- Orbital Hausdorff dependence and stability of the solution to differential equations with variable structure and non-instantaneous impulses
- Improvements on the Leighton oscillation theorem for second-order dynamic equations
- Topogenous orders on forms
- Comparison of topologies on fundamental groups with subgroup topology viewpoint
- An elementary proof of the generalized Itô formula
- Asymptotic normality for kernel-based test of conditional mean independence in Hilbert space
- Advancing reliability and medical data analysis through novel statistical distribution exploration
- Historical notes on the 75th volume of Mathematica Slovaca - Authors of the first issue from 1951
Articles in the same Issue
- Generalized Sasaki mappings in d0-Algebras
- On a theorem of Nathanson on Diophantine approximation
- Constructing infinite families of number fields with given indices from quintinomials
- Partitions into two Lehmer numbers in ℤq
- Fundamental systems of solutions of some linear differential equations of higher order
- On k-Circulant matrices involving the Lucas numbers of even index
- Explicit formulae for the Drazin inverse of the sum of two matrices
- On nonoscillation of fractional order functional differential equations with forcing term and distributed delays
- Novel generalized tempered fractional integral inequalities for convexity property and applications
- Convergence of α-Bernstein-Durrmeyer operators about a collection of measures
- The problem of finding eigenvalues and eigenfunctions of boundary value problems for an equation of mixed type
- Orbital Hausdorff dependence and stability of the solution to differential equations with variable structure and non-instantaneous impulses
- Improvements on the Leighton oscillation theorem for second-order dynamic equations
- Topogenous orders on forms
- Comparison of topologies on fundamental groups with subgroup topology viewpoint
- An elementary proof of the generalized Itô formula
- Asymptotic normality for kernel-based test of conditional mean independence in Hilbert space
- Advancing reliability and medical data analysis through novel statistical distribution exploration
- Historical notes on the 75th volume of Mathematica Slovaca - Authors of the first issue from 1951