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초록
The purpose of this paper is to introduce the notions of σ-δ∗-open sets and σ-δ-open sets, and investigate basic properties on σ-structures. We also study the relations among σ-δ∗-open sets, σ-δ-open sets, σ-regular open sets and σ-open sets. © 2015 Academic Publications, Ltd.
키워드
σ-preopen; σ-regular open; σ-semiopen; σ-structure; σ-β-open; σ-δ-open; σ-δ∗-open
- 제목
- σ-δ∗-open sets and σ-δ-open sets on σ-structures
- 저자
- Kim, Young-key; Min, Won-keun
- 발행일
- 2015
- 유형
- Article
- 권
- 102
- 호
- 3
- 페이지
- 421 ~ 428