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Acta Mathematica Hungarica
Authors:
T.F. Xie
and
S.P. Zhou
Abstract
Let
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$$a = e^{ - 1/\sqrt n } ,p(x) = \Pi _{k = 1}^{n - 1} (a^k + x),r_n (x) = x\frac{{p(x) - p( - x)}}
{{p(x) + p( - x)}}$$
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. The present note gives the asymptotoc formula of max
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$$\mathop {\max }\limits_{|x| \leqq 1} \left| {|x| - r_n (x)} \right|$$
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.
