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            <front>

                <journal-meta>
                                                                <journal-id>jum</journal-id>
            <journal-title-group>
                                                                                    <journal-title>Journal of Universal Mathematics</journal-title>
            </journal-title-group>
                            <issn pub-type="ppub">2618-5660</issn>
                                        <issn pub-type="epub">2618-5660</issn>
                                                                                            <publisher>
                    <publisher-name>Gökhan ÇUVALCIOĞLU</publisher-name>
                </publisher>
                    </journal-meta>
                <article-meta>
                                        <article-id pub-id-type="doi">10.33773/jum.1393185</article-id>
                                                                <article-categories>
                                            <subj-group  xml:lang="en">
                                                            <subject>Topology</subject>
                                                    </subj-group>
                                            <subj-group  xml:lang="tr">
                                                            <subject>Topoloji</subject>
                                                    </subj-group>
                                    </article-categories>
                                                                                                                                                        <title-group>
                                                                                                                                                            <article-title>GENERALIZED TOPOLOGICAL OPERATOR  ($\operatorname{\mathfrak{g}-\mathfrak{T}_{\mathfrak{g}}}$-OPERATOR) THEORY IN GENERALIZED TOPOLOGICAL SPACES  ($\mathcal{T}_{\mathfrak{g}}$-SPACES): PART IV. GENERALIZED DERIVED ($\operatorname{\mathfrak{g}-\mathfrak{T}_{\mathfrak{g}}}$-DERIVED) AND GENERALIZED CODERIVED  ($\operatorname{\mathfrak{g}-\mathfrak{T}_{\mathfrak{g}}}$-CODERIVED) OPERATORS</article-title>
                                                                                                    </title-group>
            
                                                    <contrib-group content-type="authors">
                                                                        <contrib contrib-type="author">
                                                                    <contrib-id contrib-id-type="orcid">
                                        https://orcid.org/0000-0003-2252-4342</contrib-id>
                                                                <name>
                                    <surname>Khodabocus</surname>
                                    <given-names>Mohammad Irshad</given-names>
                                </name>
                                                                    <aff>Université des Mascareignes</aff>
                                                            </contrib>
                                                    <contrib contrib-type="author">
                                                                    <contrib-id contrib-id-type="orcid">
                                        https://orcid.org/0000-0002-3155-0473</contrib-id>
                                                                <name>
                                    <surname>Sookıa</surname>
                                    <given-names>Noor-ul-hacq</given-names>
                                </name>
                                                                    <aff>University of mauritius</aff>
                                                            </contrib>
                                                    <contrib contrib-type="author">
                                                                    <contrib-id contrib-id-type="orcid">
                                        https://orcid.org/0000-0001-6202-7610</contrib-id>
                                                                <name>
                                    <surname>Somanah</surname>
                                    <given-names>Radhakhrishna Dinesh</given-names>
                                </name>
                                                                    <aff>Université des Mascareignes</aff>
                                                            </contrib>
                                                                                </contrib-group>
                        
                                        <pub-date pub-type="pub" iso-8601-date="20240731">
                    <day>07</day>
                    <month>31</month>
                    <year>2024</year>
                </pub-date>
                                        <volume>7</volume>
                                        <issue>2</issue>
                                        <fpage>128</fpage>
                                        <lpage>165</lpage>
                        
                        <history>
                                    <date date-type="received" iso-8601-date="20231120">
                        <day>11</day>
                        <month>20</month>
                        <year>2023</year>
                    </date>
                                                    <date date-type="accepted" iso-8601-date="20240731">
                        <day>07</day>
                        <month>31</month>
                        <year>2024</year>
                    </date>
                            </history>
                                        <permissions>
                    <copyright-statement>Copyright © 2018, Journal of Universal Mathematics</copyright-statement>
                    <copyright-year>2018</copyright-year>
                    <copyright-holder>Journal of Universal Mathematics</copyright-holder>
                </permissions>
            
                                                                                                                        <abstract><p>In a recent paper (\textsc{Cf.} \cite{KHODABOCUS_2023_4}), we have introduced the definitions and studied the essential properties of the generalized topological operators $\operatorname{\mathfrak{g}-Der}_{\mathfrak{g}}$, $\operatorname{\mathfrak{g}-Cod}_{\mathfrak{g}}: \mathcal{P}\left(\Omega\right) \longrightarrow \mathcal{P}\left(\Omega\right)$ (\textit{$\operatorname{\mathfrak{g}-\mathfrak{T}}_{\mathfrak{g}}$-derived} and \textit{$\operatorname{\mathfrak{g}-\mathfrak{T}}_{\mathfrak{g}}$-coderived operators}) in a generalized topological space $\mathfrak{T}_{\mathfrak{g}} = \left(\Omega,\mathcal{T}_{\mathfrak{g}}\right)$ (\textit{$\mathcal{T}_{\mathfrak{g}}$-space}). Mainly, we have shown that $\left(\operatorname{\mathfrak{g}-Der_{\mathfrak{g}}},\operatorname{\mathfrak{g}-Cod_{\mathfrak{g}}}\right): \mathcal{P}\left(\Omega\right)\times\mathcal{P}\left(\Omega\right) \longrightarrow \mathcal{P}\left(\Omega\right)\times\mathcal{P}\left(\Omega\right)$ is a pair of both \textit{dual and monotone $\operatorname{\mathfrak{g}-\mathfrak{T}_{\mathfrak{g}}}$-operators} that is \textit{$\left(\emptyset,\Omega\right)$, $\left(\cup,\cap\right)$-preserving}, and \textit{$\left(\subseteq,\supseteq\right)$-preserving} relative to $\operatorname{\mathfrak{g}-\mathfrak{T}}_{\mathfrak{g}}$-(open, closed) sets. We have also shown that $\left(\operatorname{\mathfrak{g}-Der}_{\mathfrak{g}},\operatorname{\mathfrak{g}-Cod}_{\mathfrak{g}}\right): \mathcal{P}\left(\Omega\right)\times\mathcal{P}\left(\Omega\right) \longrightarrow \mathcal{P}\left(\Omega\right)\times\mathcal{P}\left(\Omega\right)$ is a pair of \textit{weaker} and \textit{stronger $\operatorname{\mathfrak{g}-\mathfrak{T}_{\mathfrak{g}}}$-operators}. In this paper, we define by transfinite recursion on the class of successor ordinals the $\delta^{\operatorname{th}}$-iterates $\operatorname{\mathfrak{g}-Der}_{\mathfrak{g}}^{\left(\delta\right)}$, $\operatorname{\mathfrak{g}-Cod}_{\mathfrak{g}}^{\left(\delta\right)}: \mathcal{P}\left(\Omega\right) \longrightarrow \mathcal{P}\left(\Omega\right)$ (\textit{$\operatorname{\mathfrak{g}-\mathfrak{T}_{\mathfrak{g}}^{\left(\delta\right)}}$-derived} and \textit{$\operatorname{\mathfrak{g}-\mathfrak{T}_{\mathfrak{g}}^{\left(\delta\right)}}$-coderived operators}) of $\operatorname{\mathfrak{g}-Der}_{\mathfrak{g}}$, $\operatorname{\mathfrak{g}-Cod}_{\mathfrak{g}}: \mathcal{P}\left(\Omega\right) \longrightarrow \mathcal{P}\left(\Omega\right)$, respectively, and study their basic properties in a $\mathcal{T}_{\mathfrak{g}}$-space. Moreover, we establish the necessary and sufficient conditions for $\bigl(\operatorname{\mathfrak{g}-Der}_{\mathfrak{g}}^{\left(\delta\right)},\operatorname{\mathfrak{g}-Cod}_{\mathfrak{g}}^{\left(\delta\right)}\bigr): \mathcal{P}\left(\Omega\right)\times\mathcal{P}\left(\Omega\right) \longrightarrow \mathcal{P}\left(\Omega\right)\times\mathcal{P}\left(\Omega\right)$ to be a pair of $\operatorname{\mathfrak{g}-\mathfrak{T}_{\mathfrak{g}}}$-derived and $\operatorname{\mathfrak{g}-\mathfrak{T}_{\mathfrak{g}}}$-coderived operators in $\mathfrak{T}_{\mathfrak{g}}$. Finally, we diagram various relationships amongst $\operatorname{der}_{\mathfrak{g}}^{\left(\delta\right)}$, $\operatorname{\mathfrak{g}-Der}_{\mathfrak{g}}^{\left(\delta\right)}$, $\operatorname{cod}_{\mathfrak{g}}^{\left(\delta\right)}$, $\operatorname{\mathfrak{g}-Cod}_{\mathfrak{g}}^{\left(\delta\right)}: \mathcal{P}\left(\Omega\right) \longrightarrow \mathcal{P}\left(\Omega\right)$ and present a nice application to support the overall study.</p></abstract>
                                                            
            
                                                                                        <kwd-group>
                                                    <kwd>Generalized topological space ($\mathcal{T}_{\mathfrak{g}}$-space)</kwd>
                                                    <kwd>  generalized sets ($\operatorname{\mathfrak{g}-\mathfrak{T}_{\mathfrak{g}}}$-sets)</kwd>
                                                    <kwd>  $\delta^{\operatorname{th}}$-order generalized derived operator ($\operatorname{\mathfrak{g}-\mathfrak{T}_{\mathfrak{g}}^{\left(\delta\right)}}$-derived operator)</kwd>
                                                    <kwd>  $\delta^{\operatorname{th}}$-order generalized coderived operator ($\operatorname{\mathfrak{g}-\mathfrak{T}_{\mathfrak{g}}^{\left(\delta\right)}}$-coderived operator)</kwd>
                                            </kwd-group>
                            
                                                                                                                                                    </article-meta>
    </front>
    <back>
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