吉林大学学报(理学版) ›› 2022, Vol. 60 ›› Issue (3): 514-520.

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闭模糊拟阵导出独立集的等价描述

吴德垠   

  1. 重庆大学 数学与统计学院, 重庆 401331
  • 收稿日期:2021-10-28 出版日期:2022-05-26 发布日期:2022-05-26
  • 通讯作者: 吴德垠 E-mail:wdy@cqu.edu.cn

Equivalent Description of Closed Fuzzy Matriods by Induced Independent Sets

WU Deyin   

  1. College of Mathematics and Statistics, Chongqing University, Chongqing 401331, China
  • Received:2021-10-28 Online:2022-05-26 Published:2022-05-26

摘要: 利用闭模糊拟阵可由基本序列和导出拟阵序列唯一确定的方法, 提出并证明一个子集族、 一个数列和由该子集族到该数列的一个满射, 在满足规范性、 继承性、 强单调减和增长性的条件下唯一确定一个闭模糊拟阵, 反之亦然. 该等价描述建立了普通集族与模糊独立集族的联系.

关键词: 拟阵, 模糊拟阵, 闭模糊拟阵, 导出独立集族, 导出独立集映射, 导出独立集公理

Abstract: By using the method that a closed fuzzy matroid could be uniquely determined from the basic sequence and the derived matroid equence, the author proposed and proved that a subset family, a sequence, and a surjection from the subset family to the sequence could uniquely determine a closed fuzzy matroid under the conditions of normality,  inheritance, strong monotonic subtraction and growth, and vice versa. The equivalent description established the relationship between the family of ordinary sets and the family of fuzzy independent sets.

Key words: matroid, fuzzy matroid, closed fuzzy matroid, family of induced independent set, mapping of induced independent set, axiom of induced independent set

中图分类号: 

  • O157