EXPANSIVITY OF A CONTINUOUS SURJECTION

  • Choi, Sung Kyu (Department of Mathematics Chungnam National University) ;
  • Chu, Chin-Ku (Department of Mathematics Chungnam National University) ;
  • Park, Jong Suh (Department of Mathematics Chungnam National University)
  • 투고 : 2002.03.30
  • 발행 : 2002.08.01

초록

We introduce the notion of expansivity for a continuous surjection on a compact metric space, as the positively and negatively expansive map. We also prove that some well-known properties about positively expansive maps in [2] hold by using our definition.

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