منابع مشابه
Rothberger ’ S Property in All Finite Powers
A space X has the Rothberger property in all finite powers if, and only if, its collection of ω-covers has Ramseyan properties.
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In this article, we have characterized ideals in $C(X)$ in which every ideal is also an ideal (a $z$-ideal) of $C(X)$. Motivated by this characterization, we observe that $C_infty(X)$ is a regular ring if and only if every open locally compact $sigma$-compact subset of $X$ is finite. Concerning prime ideals, it is shown that the sum of every two prime (semiprime) ideals of e...
متن کامل7 Rothberger ’ S Property in All Finite Powers
A space X has the Rothberger property in all finite powers if, and only if, its collection of ω-covers has Ramseyan properties.
متن کاملSemi-Rothberger and related spaces
In this paper our focus is to study certain covering properties in topological spaces by using semi-open covers. A part of this article deals with Rothberger-type covering properties. The notions of s-Rothberger, almost s-Rothberger, star s-Rothberger, almost star s-Rothberger, strongly star s-Rothberger spaces are defined and corresponding properties are investigated.
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Background: Sex education is one of the challenging areas of educational systems that has always been accompanied by many problems due to some obstacles and constraints. This has led to occurrence of many behavioral problems and deviations. The aim of this study was to determine the sex education gaps in university curriculum from the students' perspective. Methods: This was a descriptive-surve...
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ژورنال
عنوان ژورنال: Fundamenta Mathematicae
سال: 2014
ISSN: 0016-2736,1730-6329
DOI: 10.4064/fm227-1-4