In this paper, we give some criteria for convex function, strictly convex function and explicitly convex function.

本文给出了凸函数，严格凸函数和显凸函数的一些判别准则。

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The criterion or cost-function with respect to the complex tap-weight vector of the equalizer and to the error probability is strictly a convex function.

该准则或价值函数是关于均衡器抽头权矢量和误差概率的严格凹函数。

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Furthermore, we show that the constant modulus cost function with non-canonical constraint is strictly convex under some conditions.

然后证明具有非标准约束的常数模准则在适当条件下是严格凸的。

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