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arXiv 0810.0633math.RA
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由拟序确定的粗糙集

Rough Sets Determined by Quasiorders

Jouni Järvinen, Sándor Radeleczki, Laura Veres

摘要:

研究了由拟序关系$R$确定的粗糙集的序集.我们证明了这个序集是一个完备的完全分配格。我们证明了在这个格上可以定义三种不同的补运算,并描述了它的完全并不可约元。我们还刻画的情况下,这个晶格是一个石头格。我们的结果推广了J.Pomykala和J.A. Pomykala和M. Gehrke和E. Walker(1992)在$R$情况下是等效的。

英文摘要:

In this paper, the ordered set of rough sets determined by a quasiorder relation $R$ is investigated. We prove that this ordered set is a complete, completely distributive lattice. We show that on this lattice can be defined three different kinds of complementation operations, and we describe its completely join-irreducible elements. We also characterize the case in which this lattice is a Stone lattice. Our results generalize some results of J. Pomykala and J. A. Pomykala (1988) and M. Gehrke and E. Walker (1992) in case $R$ is an equivalence.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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