<doi_batch xmlns="http://www.crossref.org/schema/4.4.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="4.4.0"><head><doi_batch_id>fd9e8b61-b92e-4aab-9637-f9a53c469b77</doi_batch_id><timestamp>20250516062643183</timestamp><depositor><depositor_name>naun:naun</depositor_name><email_address>mdt@crossref.org</email_address></depositor><registrant>MDT Deposit</registrant></head><body><journal><journal_metadata language="en"><full_title>International Journal of Pure Mathematics</full_title><issn media_type="electronic">2313-0571</issn><archive_locations><archive name="Portico"/></archive_locations><doi_data><doi>10.46300/91019</doi><resource>http://www.naun.org/cms.action?id=6985</resource></doi_data></journal_metadata><journal_issue><publication_date media_type="online"><month>5</month><day>16</day><year>2025</year></publication_date><publication_date media_type="print"><month>5</month><day>16</day><year>2025</year></publication_date><journal_volume><volume>12</volume><doi_data><doi>10.46300/91019.2025.12</doi><resource>https://npublications.com/journals/puremath/2025.php</resource></doi_data></journal_volume></journal_issue><journal_article language="en"><titles><title>Practical Illustration of the Noetherization of an Integro-differential Operator A</title></titles><contributors><person_name sequence="first" contributor_role="author"><given_name>Abdourahman Haman</given_name><surname>Adji</surname><affiliation>Department of Mathematics and Computer Sciences. University of Ngaoundere, Ngaoundere, CAMEROON</affiliation></person_name><person_name sequence="additional" contributor_role="author"><given_name>Shankishvili Lamara</given_name><surname>Dmitrievna</surname><affiliation>Department of Mathematics, Georgian Technical University, Kostova Street, Tbilissi, GEORGIA</affiliation></person_name></contributors><jats:abstract xmlns:jats="http://www.ncbi.nlm.nih.gov/JATS1"><jats:p>The objective set in this research work is the construction of an illustrative, precise, and concise example of the construction of the noetherian theory of an integro-differential operator defined by an integral equation of third kind in certain types of functional spaces well defined. The motivations for carrying out such work lie in the aim of linking theoretical results to those obtained in practice by finding all the aspects of the theory in the construction of the said noetherian theory obtained in my previous research, relative to an integro-differential operator defined by an integral equation of the third kind in an analytical manner with well-defined concrete parameters. The illustration of the construction of the noetherian theory through the investigation of an integro-differential operator, defined by an integral equation of the third kind in a well-chosen functional space is the focal point of the work to be undertaken following the obtaining of our recent research results widely published in various references. To achieve this, we link the theoretical recipes to the practical ones by applying the different concepts and notions of the noetherian theory to a particular case of an operator A concretely defined analytically. We arrive at systematically defining the finite characteristic deficient numbers of the integro-differential operator and, consequently, obtaining its finite index confirming its noetherity. We base ourselves on the theoretical recipes obtained in our previous works to find them in the resolution of a concrete and detailed example, involving all the related results of the noetherian theory.</jats:p></jats:abstract><publication_date media_type="online"><month>5</month><day>16</day><year>2025</year></publication_date><publication_date media_type="print"><month>5</month><day>16</day><year>2025</year></publication_date><pages><first_page>1</first_page><last_page>10</last_page></pages><publisher_item><item_number item_number_type="article_number">1</item_number></publisher_item><ai:program xmlns:ai="http://www.crossref.org/AccessIndicators.xsd" name="AccessIndicators"><ai:free_to_read start_date="2025-05-16"/><ai:license_ref applies_to="am" start_date="2025-05-16">https://npublications.com/journals/puremath/2025/a022019-001(2025).pdf</ai:license_ref></ai:program><archive_locations><archive name="Portico"/></archive_locations><doi_data><doi>10.46300/91019.2025.12.1</doi><resource>https://npublications.com/journals/puremath/2025/a022019-001(2025).pdf</resource></doi_data><citation_list><citation key="ref0"><unstructured_citation>Ferziger J.H., Kaper H.G. 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