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本书主要取材于近20年来发表于著名国际杂志上40多篇论文。书中全面地系统地论述了焦点量，奇点量及其代数结构，计算奇点量的递推公式与计算机算法，等时中心与时角差，一类高次奇点和无穷远点的中心焦点判定与极限...
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