…Even if a continuous map f : X → Y gives a one-to-one correspondence, the inverse map f -1 : Y → X is not necessarily a continuous map. When f -1 is also continuous, f is called a homeomorphism (topological map), and when such an f exists, X and Y are said to be homeomorphic (topological). [Minoru Nakaoka]. … *Some of the terminology explanations that mention "homeomorphism" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…連続写像f:X→Yが1対1対応を与えても,逆写像f-1:Y→Xは連続写像とは限らない。f-1も連続であるときfを同相写像(位相写像)といい,このようなfが存在するときXとYは同相(位相同型)であるという。【中岡 稔】。… ※「位相同型」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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