Last Updated：2025/11/22
Sentence
球面は単連結な位相空間であり、その基本群は一元集合です。
Quizzes for review
The sphere is a simply connected topological space, meaning its fundamental group is a singleton.
See correct answer
The sphere is a simply connected topological space, meaning its fundamental group is a singleton.
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Related words
simply connected
Adjective
not-comparable
of a topological space
Japanese Meaning
単連結：位相空間において、基本群（ループの同値類）が自明、すなわち一つの要素だけから構成され、任意の閉曲線が縮退可能であることを意味する。
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