Digital Jordan curves

Digital Jordan curves
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DOI:
10.1016/j.topol.2005.10.011
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发表时间:
2006-11
影响因子:
0.6
通讯作者:
J. Šlapal
J. Šlapal
中科院分区:
数学4区
文献类型:
--
作者:
J. Šlapal

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对于定义在Z2上的一种新拓扑,证明了一个数字Jordan曲线定理。将该拓扑与数字拓扑中使用的经典Khalimsky和Marcus拓扑进行了比较。我们证明了相对于所定义的拓扑的乔丹曲线,不同于关于上述两个经典拓扑的乔丹曲线,它可以在锐角π4处转向。我们还讨论了新拓扑的一个商拓扑。
A digital Jordan curve theorem is proved for a new topology defined on Z2. This topology is compared with the classical Khalimsky and Marcus topologies used in digital topology. We show that the Jordan curves with respect to the topology defined, unlike the Jordan curves with respect to any of the two classical topologies mentioned, may turn at the acute angle π4. We also discuss a quotient topology of the new topology.