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拟连续定向空间的性质
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作者 王武 谭彬 《模糊系统与数学》 北大核心 2023年第6期100-104,共5页
本文研究了拟连续定向空间的一些性质。主要结果有:(1)拟连续定向空间的连续收缩核,开子空间,闭子空间是拟连续定向空间;(2)证明了拟连续性在保非空有限集≪关系的满映射像下的不变性;(3)给出了拟连续定向空间伴随的一些性质。
关键词 连续定向空间 连续收缩核 子空间 不变性 伴随
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α-FUZZY PAIRWISE RETRACT OF L-VALUED PAIRWISE STRATIFICATION SPACES
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作者 M.H.GHANIM F.S.MAHMOUD +1 位作者 M.A.FATH ALLA M.A.HEBESHI 《Chinese Annals of Mathematics,Series B》 SCIE CSCD 2004年第4期533-544,共12页
The notion of a fuzzy retract was introduced by Rodabaugh (1981). The notion of a fuzzy pairwise retract was introduced in 2001. Some weak forms and some strong forms of α-continuous mappings were introduced in 1988 ... The notion of a fuzzy retract was introduced by Rodabaugh (1981). The notion of a fuzzy pairwise retract was introduced in 2001. Some weak forms and some strong forms of α-continuous mappings were introduced in 1988 and 1997. The authors extend some of these forms to the L-fuzzy bitopological setting and construct various α-fuzzy pairwise retracts. The concept of weakly induced spaces in the case L = [0,1] was introduced by Martin (1980). Liu and Luo (1987) generalized this notion to the case that L is an arbitrary F-lattice and introduced the notion of induced L-fts. Several results are obtained, especially, for L-valued pairwise stratification spaces. 展开更多
关键词 L-fuzzy pairwise continuous mappings α-Pairwise continuous mappings α-Fuzzy pairwise retracts L-valued pairwise stratification spaces
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