By discussing the local convergence and local continuous in locally convex Spaces, some new sufficient and essential conditions are given on C-locally sequential Spaces.

通过对局部凸空间中局部收敛与局部连续的讨论，给出了C -局部序列空间的一些新的充分必要条件。

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We obtain a sufficient condition and a essential - sufficient condition about convergence at the end point of the convergence interval of power series.

通过对阿贝尔定理的深入探讨，获得了幕级数在其收敛区间端点收敛的一些判别条件。

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One of essential characteristics to the urbanization is urban economic spatial concentration or convergence, which academic circles and government departments can't know enough.

对城市化的一个本质特征——城市经济具有空间聚集状态和趋势，学术界和决策部门认识不足。 这一特征与经济系统运动有没有内在联系?。

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The convergence of media and technology may be essential for both industries, but nobody has tried to bring both together under the same corporate roof with quite so much daring.

ECONOMIST: Internet riders