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单词 WindingNumberAndFundamentalGroup
释义

winding number and fundamental group


The winding number is an analytic way to define an explicit isomorphismMathworldPlanetmathPlanetmathPlanetmathPlanetmath

W[:z0]:π1(z0)

from the fundamental groupMathworldPlanetmathPlanetmath of the punctured (at z0) complex plane to the groupof integers.

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更新时间:2025/5/4 16:48:37