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It has been proved that if a rectangle is dissected into three congruent pieces,then those pieces must themselves be rectangles. In the present paper this result is generalized to the case of parallelogram. 相似文献
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出出了词汇的T-Y码,T-Z码和机读词典T索引文件的定义,提出了T索引文件中冲突次数的计算公式和处理冲突的策略。本文对计算语言学的研究有一定价值。 相似文献
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Let g(n) denote the least integer such that among any g(n) points in general position in the plane there are always n points in convex position.In this paper we show that g(n)≤(n-2 ↑2n-5) 2 by a new method. 相似文献
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Let g(n) denote the least integer such that among any g(n) points in general position in the plane there are always n points in convex position. In this paper we show that g(n)≤(2n-5 , n-2)+2 by a new method. 相似文献