• Kim, In-Su (Department of Mathematics, Chonbuk National University) ;
  • Kato, Hisao (Institute of mathematics, university of Tsukuba) ;
  • Park, Jong-Jin (Department of Mathematics, Chonbuk National University)
  • Published : 1999.05.01


In this paper we introduce the notions of expansive homeomorphism and its properties, and study the relation between countable compacta and ordinal numbers. Our results extend and improve those of T.Kimura and others.


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