A quotient-universal digital topology

  • Authors:
  • Josef lapal

  • Affiliations:
  • Brno University of Technology, Institute of Mathematics, Technicka 2, 616 69 Brno, Czech Republic

  • Venue:
  • Theoretical Computer Science
  • Year:
  • 2008

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Abstract

We study a special topology on Z^2 and show that both the Marcus topology and the Khalimsky topology and also one more digital topology on Z^2 may be obtained as three of its quotient topologies. A quotient closure operator of the topology studied is discussed, too, and an analogue of the Jordan curve theorem for this closure operator is proved.