关于L-拓扑空间中连通性的几个问题

本文指出,王国俊的专著《L-fuzzy拓扑空间论》中关于连通性的许多不成立的结论,在fuzzy格L的最大元1是分子的情况下仍成立。从而得到一般连通L-集的新刻画与新性质．并证明了这种连通性是L-好推广。     

L-拓扑空间中的Os-p连通性

讨论了L-拓扑空间中的p-开集,p-闭集等概念,然后利用这些概念在L-拓扑空间中提出了Os-p连通集的概念,研究它们的一些基本性质.     

L-拓扑空间的LF α-p连通性的若干性质

利用p-远域给出α-p连通性的樊畿定理,并研究了拓扑生成的L-fts中的α-p连通性的性质。     

L—Fuzzy拓扑空间的局部连通性

文（１）曾在广义拓扑分子格中提出了一种连通性。本文在Ｌ－ｆｕｚｚｙ拓扑空间中给出了这种连通性的几种刻划，并引入了Ｌ－ｆｕｚｚｙ拓扑空间的局部连通性，这种局部连通性是有限可乘的，商序同态保持的且是好的推广，另外，ｆｕｚｚｙ实直线是局部连通的。     

L─Fuzzy拓扑空间的局部连通性

文［１］曾在广义拓扑分子格中提出了一种连通性。本文在Ｌ—ｆｕｚｚｙ拓扑空间中给出了这种连通性的几种刻划，并引入了Ｌ—ｆｙｚｚｙ拓扑空间的局部连通性。这种局部连通性是有限可乘的，商序同态保持的且是好的推广。另外，ｆｕｚｚｙ实直线是局部连通的。     

LF拓扑空间中的序列连通性

主要引进了拓扑空间中序列连通的定义,并给出了序列连通的一些刻画和性质研究.     

L-拓扑空间相对积空间的s-连通性

证明了s-连通性关于相对乘积运算是可乘的且是L-好推广。     

灰拓扑群

给出了灰拓扑群的定义及有关定理,在此基础上讨论灰拓扑群与Fuzzy拓扑群、一般拓各之关系,并且研究了灰拓扑群的子群。     

L-双拓扑空间的LFα-p连通性的若干性质

文[1]首先提出了L-拓扑空间中的p-开集、p-闭集等概念,本文以此为基础,引入了L-双fuzzy拓扑空间的α-p连通性的概念,并研究了其若干基本性质.     

LF拓扑空间中r连通性的讨论

研究了LF拓扑空间中r连通性的拓扑不变性质和樊畿定理型刻画,在提出了r序同态和r连通性的基础上讨论了二者的基本性质,证明了r连通性是r拓扑性质;得到了r连通性的樊畿定理;为讨论r连通性的其他性质奠定了基础.     

Connectedness and compactness on standard sets

We present a nonstandard characterization of connected compact sets (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)     

拓扑向量空间中的一类平衡问题研究

通过对偶的方法研究了拓扑向量空间上的一类平衡问题,并详细的证明了平衡问题解的存在性结果,又利用集值映射的拟凸性讨论了一类集值映射的平衡问题,并给出了详细的证明过程,得到其平衡问题的解的存在性结果.     

关于子基的局部连通性

在粗燥集理论研究中,覆盖方法的应用越来越受到重视,其中拓扑空间的子集关于子基的内部和闭包两个概念尤为重要.在最近由它们导入的关于子基的连通性基础上,给出了关于子基的局部连通性概念,并研究它的性质,得到一般拓扑学中局部连通性的一种推广.     

On the topological structure of the Levi-Civita field

Two topologies on the Levi-Civita field R will be studied: the valuation topology induced by the order on the field, and another weaker topology induced by a family of seminorms, which we will call weak topology. We show that each of the two topologies results from a metric on R, that the valuation topology is not a vector topology while the weak topology is, and that R is complete in the valuation topology while it is not in the weak topology. Then the properties of both topologies will be studied in details; in particular, we give simple characterizations of open, closed, and compact sets in both topologies.     

Effective continuities on effective topological spaces

We extend a notion of effective continuity due to Mori, Tsujii and Yasugi to real-valued functions on effective topological spaces. Under reasonable assumptions, Type-2 computability of these functions is characterized as sequential computability and the effective continuity. We investigate effective uniform topological spaces with a separating set, and adapt the above result under some assumptions. It is also proved that effective local uniform continuity implies effective continuity under the same assumptions.     

On topological set theory

This paper is concerned with topological set theory, and particularly with Skala's and Manakos' systems for which we give a topological characterization of the models. This enables us to answer natural questions about those theories, reviewing previous results and proving new ones. One of these shows that Skala's set theory is in a sense compatible with any ‘normal’ set theory, and another appears on the semantic side as a ‘Cantor theorem’ for the category of Alexandroff spaces. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)     

集值优化问题强有效解集的连通性

在局部凸拓扑线性空间中给出了集值向量优化问题强有效解的连通性定理.该定理是在可行域为弧连通的条件下得到的.