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单词 Wild
释义

wild


Let S be a set in n and suppose that S is triangulable.(S is triangulable means that when regarded as a space, it has a triangulation.)

If there is a homeomorphismMathworldPlanetmath h:nn such thath(S) is a polyhedron, we say that S is tamely imbedded.

If S is triangulable but no such homeomorphism exists S is said to bewild.

In 2 every 1-sphere is tamely imbedded. Butin 3 there are wild arcs, 1-spheres and 2-spheres.

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更新时间:2025/5/4 19:59:28