area preserving mapping 保面积映射
orientation preserving mapping [数] 保持定向映射
order-preserving mapping [数] 保序映射
connection preserving mapping [数] 联络保存映射
length-preserving mapping 等距映射
sense-preserving mapping [数] 保向映射
In the paper researches on a three-dimensional measure-Preserving mapping system are made, which is the three-dimensional extension of the Keplerian map-ping.
本文通过构造形式级数的方式，给出了一种三维保测度映射系统中一维不变流形和二维不变流形的计算方法。
We have studied the KS entropy of a 2-dimensional measure-preserving mapping with an elliptic or hyperbolic fixed point respectively, as well as that of its 3-dimensional extension.
我们已经研究了分别具椭圆和双曲不动点的二维保测度映射及其受摄三维扩张的KS熵。
This paper proposes a kind of method that can preserve integrity constraints in data mapping, contrives a mechanism(DAPPIC)of generating constraints-preserving publishing rules.
提出一种在数据映射方式下保持完整性约束的数据发布方法，设计了一套保持完整性约束的数据发布规则生成机制DAPPIC。
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