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关于Smarandache函数的一个下界估计 被引量:14

A lower bound estimate problem for the Smarandache function
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摘要 目的研究Smarandache函数在某些特殊值上的下界估计。方法利用初等及组合方法。结果证明了估计式S(ap+bp)≥8p+1,其中p为任意大于17的素数,a及b为任意不同的正整数。结论给出了Smarandache函数在某些特殊值上的一个较强的下界估计。 Aim To study a lower bound estimate problem of the Smarandache function at some special values. Methods Using the elementary and combinational methods. Results It is proved the estimate S (a^p + b^p) ≥8p + 1, where p ≥ 17 be any prime, a and b are two positive integers with a ≠ b. Conclusion A new lower bound estimate of the Smarandache function (at some special values) is given.
出处 《西北大学学报(自然科学版)》 CAS CSCD 北大核心 2011年第3期377-379,共3页 Journal of Northwest University(Natural Science Edition)
基金 国家自然科学基金资助项目(10671155)
关键词 SMARANDACHE函数 下界估计 初等方法 组合方法 Smarandache function lower bound estimate elementary method combinational method
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参考文献8

二级参考文献22

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共引文献106

同被引文献78

  • 1徐哲峰.Smarandache函数的值分布性质[J].数学学报(中文版),2006,49(5):1009-1012. 被引量:88
  • 2沈忠华,于秀源.关于数论函数σ(n)的一个注记[J].Journal of Mathematical Research and Exposition,2007,27(1):123-129. 被引量:10
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  • 4Kenichiro Kashihara. Comments and Topics on Smarandache Notions and Problems [M]. NewMexico: Erhus University Press, 1996.
  • 5Liu Yarning. On the solutions of an equation involving the Smarandache function [J]. Scientia Magna, 2006,2(1):76-79.
  • 6Wang Jinrui. On the Smarandache function and the Fermat numbers[J]. Scientia Magna, 2008,4(2):25-28.
  • 7Tom M Apostol. Introduction to Analytic Number Theory [M]. New York: Springer-Verlag, 1976.
  • 8刘燕妮,李玲,刘宝利.Smarandache未解决的问题及其新进展[M].High American Press,2008.
  • 9Smarandache F. Only Problems,Not Solutions [M]. Chicago:Xiquan Publishing House,1993.
  • 10Kenichiro Kashihara. Comments and topics on Smarandache notions and problems [M]. Erhus University Press, USA, 1996.

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