计算机科学 ›› 2020, Vol. 47 ›› Issue (6A): 526-529.doi: 10.11896/JsJkx.190600003
周俊丽, 管延勇, 徐法升, 王洪凯
ZHOU Jun-li, GUAN Yan-yong, XU Fa-sheng and WANG Hong-kai
摘要： 文中在覆盖近似空间中,提出核的概念,研究核的存在性与唯一性以及覆盖块、邻域和核之间的关系;基于核和约简,提出协调覆盖的概念,揭示约简、核和协调覆盖之间的关联;最后,给出覆盖产生的邻域族等于覆盖本身的充要条件。
中图分类号:
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