共查询到19条相似文献,搜索用时 46 毫秒
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提出一种生成模糊蕴涵的新方法,即通过一个或多个选定的模糊蕴涵作多重迭代生成新的模糊蕴涵,称为多重模糊蕴涵.从选定的模糊蕴涵出发,根据不同的迭代次数,分别证明迭代结果仍为模糊蕴涵.进一步,分析当选定的模糊蕴涵具有某种性质时,所生成的多重模糊蕴涵是否仍保持这些性质.还对选定的模糊蕴涵分别为(S,N)-蕴涵和R-蕴涵这两种重要情形,进行更深入的分析.这些结果将为模糊蕴涵在控制及决策等领域的应用提供支持. 相似文献
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本文给王国俊先生发现的良紧性定义了一个分明拓扑模型,利用此模型较为简洁地证明了关于良紧性的吉洪诺夫定理。然后,仿照良紧性的定义方式定义了J——紧性。最后,利用彭育威先生对良紧性作出的几何刻划证明了良紧性与一般的J——紧性之间的一个重要关系。总之,本文的结果对认识模糊拓扑与分明拓扑之间的联系有一定的意义。 相似文献
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首先考察模糊数空间中Skorokhod度量与紧承下方图度量之间的关系,然后说明了文献[4]中的关于Skorokhod拓扑紧致性的例子是错误的并给出了正确的例子. 相似文献
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《佛山科学技术学院》2014,6(1):115-131
We point out that the product of two fuzzy closed sets of smooth fuzzy topological spaces need not be fuzzy closed with respect to the the existing notion of product smooth fuzzy topology. To get this property, we introduce a new suitable product smooth fuzzy topology. We investigate whether and are weakly smooth fuzzy continuity whenever , , and are weakly smooth fuzzy continuous. Using this new product smooth fuzzy topology, we define smooth fuzzy perfect mapping and prove that composition of two smooth fuzzy perfect mappings is smooth fuzzy perfect under some additional conditions. We also introduce two new notions of compactness called -compactness and --compactness; and discuss the compactness of the image of a -compact set (--compact set) under a weakly smooth fuzzy continuous function (-weakly smooth fuzzy continuous function). 相似文献
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在不分明化拓扑空间中,从正则开集出发引入了近似紧性和几乎紧性的概念,并且给出了它们的一些性质.这些概念的结合有助于我们对不分明化拓扑的研究。 相似文献
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A.A.Salama 《模糊系统与数学》2010,24(2)
Fuzzy ideals and the notion of fuzzy local function were introduced and studied by Sarkar[12] and by Mahmoud in [9]. The purpose of this paper deals with a fuzzy compactness modulo a fuzzy ideal. Many new sorts of weak and strong fuzzy compactness have been introduced to fuzzy topological spaces in the last twenty years but not have been studied using fuzzy ideals so,the main aim of our work in this paper is to define and study some new various types of fuzzy compactness with respect to fuzzy ideals namely fuzzy L-compact and L*-compact spaces. Also fuzzy compactness with respect to ideal is useful as unification and generalization of several others widely studied concepts. Possible application to superstrings and E∞ space-time are touched upon. 相似文献
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基于包含度的模糊随机粗糙集模型 总被引:1,自引:0,他引:1
针对随机性与模糊性同时存在的情形,提出了建立在模糊随机近似空间上的基于包含度的模糊随机粗糙集模型.首先给出了模糊随机近似空间的概念,然后利用包含度提出了模糊随机近似空间上的一种基于模糊随机集的粗糙近似算子.最后讨论了这种近似算子的一些性质. 相似文献
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引入了一类H-单调映象的广义Fuzzy隐拟变分包含问题,利用文[1]中H-单调映象的预解算子技巧研究了这类变分包含解的迭代算法逼近,证明了其解的存在性以及由算法生成的迭代序列的收敛性。 相似文献