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            <front>

                <journal-meta>
                                    <journal-id></journal-id>
            <journal-title-group>
                                                                                    <journal-title>Hacettepe Journal of Mathematics and Statistics</journal-title>
            </journal-title-group>
                            <issn pub-type="ppub">2651-477X</issn>
                                        <issn pub-type="epub">2651-477X</issn>
                                                                                            <publisher>
                    <publisher-name>Hacettepe University</publisher-name>
                </publisher>
                    </journal-meta>
                <article-meta>
                                        <article-id/>
                                                                <article-categories>
                                            <subj-group  xml:lang="en">
                                                            <subject>Mathematical Sciences</subject>
                                                    </subj-group>
                                            <subj-group  xml:lang="tr">
                                                            <subject>Matematik</subject>
                                                    </subj-group>
                                    </article-categories>
                                                                                                                                                        <title-group>
                                                                                                                        <article-title>Hyperconnectedness and extremal disconnectedness in (a)topological spaces</article-title>
                                                                                                                                        </title-group>
            
                                                    <contrib-group content-type="authors">
                                                                        <contrib contrib-type="author">
                                                                <name>
                                    <surname>Arup Roy Choudhury</surname>
                                    <given-names>Arup Roy Choudhury</given-names>
                                </name>
                                                            </contrib>
                                                    <contrib contrib-type="author">
                                                                <name>
                                    <surname>Mukharjee</surname>
                                    <given-names>Ajoy</given-names>
                                </name>
                                                            </contrib>
                                                    <contrib contrib-type="author">
                                                                <name>
                                    <surname>Bose</surname>
                                    <given-names>M. K.</given-names>
                                </name>
                                                            </contrib>
                                                                                </contrib-group>
                        
                                        <pub-date pub-type="pub" iso-8601-date="20150401">
                    <day>04</day>
                    <month>01</month>
                    <year>2015</year>
                </pub-date>
                                        <volume>44</volume>
                                        <issue>2</issue>
                                        <fpage>289</fpage>
                                        <lpage>294</lpage>
                        
                        <history>
                                    <date date-type="received" iso-8601-date="20111203">
                        <day>12</day>
                        <month>03</month>
                        <year>2011</year>
                    </date>
                                                    <date date-type="accepted" iso-8601-date="20130131">
                        <day>01</day>
                        <month>31</month>
                        <year>2013</year>
                    </date>
                            </history>
                                        <permissions>
                    <copyright-statement>Copyright © 2002, Hacettepe Journal of Mathematics and Statistics</copyright-statement>
                    <copyright-year>2002</copyright-year>
                    <copyright-holder>Hacettepe Journal of Mathematics and Statistics</copyright-holder>
                </permissions>
            
                                                                                                <abstract><p>The aim of this paper is to study hyperconnectedness and extremal disconnectedness in a space equipped with a countable number of topologies.</p></abstract>
                                                                                    
            
                                                            <kwd-group>
                                                    <kwd>(a)topological spaces</kwd>
                                                    <kwd>  (m</kwd>
                                                    <kwd>  n)semiopen sets</kwd>
                                                    <kwd>  hyperconnected (a)topological spaces</kwd>
                                                    <kwd>  submaximal spaces</kwd>
                                                    <kwd>  extremally disconnected (a)topological spaces</kwd>
                                            </kwd-group>
                                                        
                                                                                                                                                    </article-meta>
    </front>
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                                    <ref id="ref1">
                        <label>1</label>
                        <mixed-citation publication-type="journal">...</mixed-citation>
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    </article>
