Some results on semi-preopen sets
Other Title(s)
بعض النتائج حول المجموعات شبه قبل المفتوحة
Joint Authors
Majid, Rasha Nasir
Nasir, Ahmad Ibrahim
Source
Ibn al-Haitham Journal for Pure and Applied Science
Issue
Vol. 22, Issue 3 (30 Sep. 2009)6 p.
Publisher
University of Baghdad College of Education for Pure Science / Ibn al-Haitham
Publication Date
2009-09-30
Country of Publication
Iraq
No. of Pages
6
Main Subjects
Topics
Abstract AR
إن أول من قدم تعریف المجموعة شبه قبل المفتوحة هو الریاضي اندرجفك، إذ عرفها بالشكل " إذا كان X(τ فضاء تبولوجي و A مجموعة جزئية من Xفأن A تسمى مجموعة شبه قبل المفتوحة إذا كان "A ⊆ A لقد قمنا في هذا البحث بدراسة خواص المجموعات شبه قبل المفتوحة و لكن لیس عن طریق التعریف أعلاه أنما بواساطة تعریف ثاني مكافئ لتعریفها و كذلك درسنا العلاقة بینها و بین أنواع أخرى من المجامیع المفتوحة الضعیفة.
Abstract EN
The definition of semi-preopen sets were first introduced by "Andrijevic" as were is defined by :Let (X , ) be a topological space, and let A ⊆X, then A is called semi-preopen set if A⊆(¯A^∘ ) ̅.
In this paper, we study the properties of semi-preopen sets but by another definition which is equivalent to the first definition and we also study the relationships among it and (open, α-open, preopen and semi-p-open )sets.
American Psychological Association (APA)
Majid, Rasha Nasir& Nasir, Ahmad Ibrahim. 2009. Some results on semi-preopen sets. Ibn al-Haitham Journal for Pure and Applied Science،Vol. 22, no. 3.
https://search.emarefa.net/detail/BIM-354655
Modern Language Association (MLA)
Majid, Rasha Nasir& Nasir, Ahmad Ibrahim. Some results on semi-preopen sets. Ibn al-Haitham Journal for Pure and Applied Science Vol. 22, no. 3 (2009).
https://search.emarefa.net/detail/BIM-354655
American Medical Association (AMA)
Majid, Rasha Nasir& Nasir, Ahmad Ibrahim. Some results on semi-preopen sets. Ibn al-Haitham Journal for Pure and Applied Science. 2009. Vol. 22, no. 3.
https://search.emarefa.net/detail/BIM-354655
Data Type
Journal Articles
Language
English
Notes
Includes appendices.
Record ID
BIM-354655
