한국수학교육학회지시리즈B:순수및응용수학 (The Pure and Applied Mathematics)

  • 제27권3호
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  • Pages.125-135
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  • 2020
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  • 1226-0657(pISSN)
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  • 2287-6081(eISSN)
한국수학교육학회 (Korean Society of Mathematical Education)
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ALEXANDROV TOPOLOGIES AND NON-SYMMETRIC PSEUDO-METRICS

  • Oh, Ju-mok (Mathematics Department, Gangneung-Wonju National University) ;
  • Kim, Yong Chan (Mathematics Department, Gangneung-Wonju National University)
  • 투고 : 2020.01.01
  • 심사 : 2020.03.05
  • 발행 : 2020.08.31
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초록

In this paper, we investigate the properties of Alexandrov topologies, non-symmetric pseudo-metrics and lower approximation operators on [0, ∞]. Moreover, we investigate the relations among Alexandrov topologies, non-symmetric pseudo-metrics and lower approximation operators. We give their examples.

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참고문헌

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