Journal of Hebei University (Natural Science Edition) ›› 2013, Vol. 33 ›› Issue (2): 124-126,147.DOI: 10.3969/j.issn.1000-1565.2013.02.003

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Optimal convex combination bounds for the first contraharmonic and the logarithmic means

PAN Xuegong1,MENG Xiangju2   

  • Online:2013-03-25 Published:2013-03-25

CLC Number: