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Full Professor
Pure Mathematics
Analytic Number Theory
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Address
School of Mathematics and System Sciences
Shandong University
Jinan, Shandong 250100
P.R. China
Tel.: 86-531-8836-4652
Fax: 86-531-8856-4652
Email: xmren@sdu.edu.cn
Homepage:
http://www.maths.sdu.edu.cn/professor/xmren/
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Education
Ph.D.: Shandong University, 2001
M.S.: Capital Normal University, 1987
B.S.: Hebei Normal University, 1984
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Professional Positions
2004-: Full Professor, Shandong University
2001-2004: Post-Doctoral Fellow, The University of Hong Kong
1995-2004: Lecturer, Associate Professor (1997), Shangdong University
1987-1995: Lecturer, Ningxia University
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Research Interests
Additive number theory
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Grants
2006-2008: National natural science
foundation
2004-2006: Foundation for the distinguished young scholars, by Shandong
province
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Preprints
[11] Vinogradov's exponential sums over primes, to appear in Acta Arith.
Publications
[10]
(with K.M. Tsang)
Waring-Goldbach problem for unlike powers, Acta
Mathematica Sinica, English Series. Pulished on line: Apr. 18, 2006.
[9]
(with K.M. Tsang)
On representation of integers by sums of a cube and
three cubes of primes, Michigan Math. J. (3) 53 (2005), 571¨C577.
[8] On exponential sum over primes and application in Waring-Goldbach
problem, Science in China Ser. A Mathematics(6) 48(2005), 785-797.
[7]
(with K.M. Tsang)
On Roth's theorem concerning a cube and three cubes of primes, Quart.
J. Math. (Oxford) 55 (2004), 357-374.
[6] (with K.M. Tsang) On a Waring-Goldbach-type
problem for fourth powers, Journal of Number Theory . 108 (2004),
90-110.
[5] The major arcs in the ternary Goldbach problem, Acta Math. Hungar.
98 (1-2) 1, (2003), 39-58.
[4] Sums of four cubes of primes, Journal of Number Theory . 98
(2003), 156-171.
[3] Density of integers that are the sum of four cubes of primes, Chin.
Ann. Math. (Ser.B) 22(2001), 233-242.
[2] The exceptional set in Roth's theorem concerning a cube and three
cubes of primes, Quart. J. Math. (Oxford) 52 (2001), 107-126.
[1] The Waring-Goldbach problem for cubes, Acta Arith. 94 (2000),
287-301.
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