得到了关于几何平均G(a,b)、反调和平均C(a,b)、幂平均Mr(a,b)和算术平均A(a,b)的不等式,对所有的a、b>0成立的γ的最佳值.
The optimal value of parameters are obtained to make the following double inequality holds for all a,b>0,2Mr(a,b)≥G(a,b)+C(a,b)and A(a,b)+C(a,b)≥2Mr(a,b)where Mr(a,b),G(a,b),C(a,b),A(a,b)denote the power mean,the geometric mean,the contraharmonic mean, the arithmetic mean of two different positive numbers a and b respectively.
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