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Article
On K(sc) and L(sc)-Spaces

Author: Haider Jebur Ali
Journal: Al-Mustansiriyah Journal of Science مجلة علوم المستنصرية ISSN: 1814635X Year: 2014 Volume: 25 Issue: 4 Pages: 125-132
Publisher: Al-Mustansyriah University الجامعة المستنصرية

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Abstract

In this paper we introduced new study, namely K(sc) and L(sc)-spaces as weak forms of KC and LC-spaces respectively. We studied further properties and showed that the relationships between these weak forms and KC and LC-spaces respectively.Keywords: Lindelof set, semi open set, semi closed set, KC and LC-spaces.

في بحثنا هذا قدمنا مفاهيم جديدة تدعى الفضاءات K(sc) و L(sc) بوصفها صيغ ضعيفة للفضاءات KC و LCعلى الترتيب. إذ ذكرنا وبرهنا بعض المبرهنات حول تلك المفاهيم. كذلك درسنا بعض الخصائص وبحثنا العلاقةبين تلك المفاهيم. كذلك درسنا بعض الخصائص وبحثنا العلاقة بين تلك المفاهيم والفضاءات KC و LC علىالترتيب.

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Article
When Compact Sets are α-Closed

Authors: Marwa Makki Dahham --- Haider Jebur Ali
Journal: Al-Nahrain Journal of Science مجلة النهرين للعلوم ISSN: (print)26635453,(online)26635461 Year: 2018 Volume: 00 Issue: 1 Pages: 166-170
Publisher: Al-Nahrain University جامعة النهرين

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Abstract

This paper is devoted to introduce new concepts so called K(αc)-spaces several various theorems about these concepts are provided in addition, further properties are studied such as the relationships between those concepts and other types of K(αc)-spaces are investigated.


Article
When Compact sets are -Closed

Authors: Haider Jebur Ali --- Marwa Makki Dahham
Journal: Al-Nahrain Journal of Science مجلة النهرين للعلوم ISSN: (print)26635453,(online)26635461 Year: 2019 Volume: 00 Issue: 2 Pages: 97-100
Publisher: Al-Nahrain University جامعة النهرين

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Abstract

This paper is devoted to introduce new concepts so called K(αc)-space several various theorems about these concepts are provided In addition, further properties are studied such as the relationships between those concepts and other types of K(αc)-spaces are investigated.


Article
Limit Sets and Cartan D – space
نقاط الغاية و فضاءD - كارتن

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Abstract

The main goal of this work is to create a general type of D – space , namely, Cartan D – space and a new type of limit sets , namely, limit sets , and, give some properties and some equivalent statement of these concept also we explain the relationship among the definitions Cartan D – space and ,

في هذا البحث قدمنا نوع جديد من الفضاءات يسمى بفضاء D – لكارتن وكذلك أعطينا نوع جديد لنقاط الغاية , وبعض الخصائص لها والعلاقة مع هذا الفضاء

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