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单词 Absolute neighborhood retract
释义

Absolute neighborhood retract

中文百科

形变收缩 Retract

(重定向自Absolute neighborhood retract)

在拓扑学中,收缩retraction),顾名思义是将整个空间收缩到一个子空间;形变收缩deformation retraction)是将空间“连续收缩”成一个子空间的映射。

英语百科

Retract 形变收缩

(重定向自Absolute neighborhood retract)

In topology, a branch of mathematics, a retraction is a continuous mapping from the entire space into a subspace which preserves the position of all points in that subspace. A deformation retraction is a map which captures the idea of continuously shrinking a space into a subspace.

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