文章详细信息 关键词： 二重级数;;累次级数;;判别法 [gap=309]Keywords: double series;iterated series;criterion of convergence
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convergent double series [数] 收敛二重级数
divergent double series [数] 发散二重级数
Doppelreihe double series 二重级数
conditionally convergent double series [数] 条件收敛的二重级数
general fourier-bessel double-series 广义fourier
hilbert double series hilbert二重级数
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As applications, we build its equivalent form and the analogue general double series inequalities.
作为应用，建立它的等价形式及对应二重级数的最佳推广不等式。
In this paper double series of functions with posititve coefficients are discussed and a natural condition of the convergence is obtained with the aid of matrix methods.
本文利用矩阵方法对二重函数项级数进行讨论，得到了极其自然的收敛条件。
The "double bubble" D8 Series concept is based on a modified tube and wing with a very wide fuselage to provide extra lift.
这款“双气泡”D8系列设计通过将机舱与机翼融合从而形成了一个相对较宽的机身从而提供额外的载客量。
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