<?xml version="1.0" encoding="UTF-8"?><OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"><responseDate>2026-10-18T23:16:30Z</responseDate><request verb="GetRecord" identifier="oai:ebyu-rdlopen.rawdatalibrary.net:ebyu/11404" metadataPrefix="oai_dc">https://ebyu-rdlopen.rawdatalibrary.net/oai/request</request><GetRecord><record><header><identifier>oai:ebyu-rdlopen.rawdatalibrary.net:ebyu/11404</identifier><datestamp>2026-10-18T20:39:21Z</datestamp><setSpec>openaire</setSpec><setSpec>driver</setSpec><setSpec>com_ebyu_10000</setSpec><setSpec>col_ebyu_10001</setSpec></header><metadata><oai_dc:dc xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd"><dc:title>ON THE HYPERBOLIC k-MERSENNE AND k-MERSENNE-LUCAS OCTONIONS</dc:title><dc:creator>Uysal, Mine</dc:creator><dc:creator>Kumari, Munesh</dc:creator><dc:creator>Kuloğlu, Bahar</dc:creator><dc:creator>Prasad, Kalika</dc:creator><dc:creator>Özkan, Engin</dc:creator><dc:subject>11B37</dc:subject><dc:subject>11B39</dc:subject><dc:subject>11R52</dc:subject><dc:subject>Binet formula</dc:subject><dc:subject>Catalan identity</dc:subject><dc:subject>generating function</dc:subject><dc:subject>Hyperbolic k-Mersenne octonions</dc:subject><dc:subject>hyperbolic k-Mersenne-Lucas octo nions</dc:subject><dc:description>In this paper, we introduce the hyperbolic k-Mersenne and k-Mersenne Lucas octonions and investigate their algebraic properties. We give Binet’s formula and present several interrelations and some well-known identities such as Catalan identity, d’Ocagne identity, Vajda identity, generating functions, etc. of these octo nions in closed form. Furthermore, we investigate the relations between hyperbolic k-Mersenne octonions and hyperbolic k-Mersenne-Lucas octonions. © 2025, University of Kragujevac, Faculty of Science. All rigths reserved.</dc:description><dc:publisher>University of Kragujevac, Faculty of Science</dc:publisher><dc:date>2025</dc:date><dc:type>Article</dc:type><dc:identifier>https://rdlopen.rawdatalibrary.net/r/ebyu/11404</dc:identifier><dc:identifier>https://doi.org/10.46793/kgjmat2505.765u</dc:identifier><dc:identifier>1450-9628</dc:identifier><dc:language>en</dc:language><dc:relation>Kragujevac Journal of Mathematics</dc:relation><dc:rights>info:eu-repo/semantics/openAccess</dc:rights><dc:type>info:eu-repo/semantics/article</dc:type><dc:identifier>https://ebyu-rdlopen.rawdatalibrary.net/tr/items/ebyu/11404</dc:identifier></oai_dc:dc></metadata></record></GetRecord></OAI-PMH>