共查询到19条相似文献,搜索用时 93 毫秒
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为探讨分子格的乘积的既约性和乘积的既约分解,文献[1]提出了分子格的既约度和分解度的概念,本文是[1]的继续,进一步给出了分子格的既约度与分解度的一些性质,证明了关于分子格乘积的全体主子格之集的基数的一个定理,以及得出了一族分子格的乘积是既约分子格的一个充要条件,此外,本文还证明了分子格范畴中乘积对上积的完全分配性是自然同构,改正了[1]中对这一结论的证明。 相似文献
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点式拟一致分子格中的拓扑 总被引:2,自引:2,他引:0
分子格L上的一个点式拟一致结构可以诱导出L上的一个拓扑和一个余拓扑()。本文证明了下面结论:(1)在拓扑分子格(L,*())中,每个分子皆有一个由()一开元组成的远域基;(2)在拓扑空间(L,())(这里L是Fuzzy格)中,每个分子皆有一个由()一开元组成的*远域基;(3)若(L,)是点式一致Fuzzy格,则()=()。 相似文献
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拓扑分子格的PS-T*分离公理 总被引:1,自引:0,他引:1
利用准半开邻域引入了拓扑分子格的一类新的PS-Ti*分离公理(i=0,1,2,3,4),给出了这些分离性的刻画,得到了这些分离性是PS-同胚序同态下保持不变的性质。 相似文献
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This paper is devoted to the discussion of filters in residuated lattices. The lattice structure of filters in residuated lattice was established. It is proved that the set of all filters forms a distributive lattice. Also, the concept of prime filter in residuated lattice was proposed and some equivalent conditions about prime filter were given. 相似文献
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A topological molecular lattice (TML) is a pair (L, T), where L is a completely distributive lattice and r is a subframe of L. There is an obvious forgetful functor from the category TML of TML‘s to the category Loc of locales. In this note,it is showed that this forgetful functor has a right adjoint. Then, by this adjunction,a special kind of topological molecular lattices called sober topological molecular lattices is introduced and investigated. 相似文献
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拓扑分子格中的有限余复盖性质 总被引:2,自引:2,他引:0
本文以素理想为基本工具,讨论了拓扑分子格中的有限余复益性质,给出了有限余复益性质的若干等价刻划。证明了关于有限余复盖性质的THXOHOB乘积定理成立;具有有限余复盖性质的T2拓扑分子格是T4的;在一定条件下T2拓扑分子格中的具有有限余复盖性质的元素是闭元。 相似文献
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Because of the metric structure of the pseudoeuclidean plane, lattices have some remarkable features, e.g., concerning their symmetry groups and concerning isotropic, space- and time-like elements. Especially (p,q,s)-lattices, which are characterized by the fact that their symmetry groups contain hyperbolic rotations, are showing some interesting structures and substructures. 相似文献
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Let V be the variety generated by two-element distributive lattice B2 and k prime fields Fp1,...,Fpk. That is to say that V = HSP{B2, Fp1,...,Fpk}. It is proved that the variety V is finitely based. Also, the two-element distributive lattice B2 and prime fields Fp1,..., Fpk are, up to isomorphism, the only subdirectly irreducible semirings in V. Some known results are extended and enriched. 相似文献