Zafer Ünal Zafer Ünal is an Associate Professor in the Department of Mathematics, Faculty of Science, at Kastamonu University, Türkiye, and currently serves as Vice Dean. He received his B.Sc. in Mathematics in 1998, M.Sc. in Mathematics in 2001, and Ph.D. in Mathematics in 2007, all from Ankara University. He began his academic career as a research assistant at Ankara University in 1998 and later worked as a lecturer at Near East University before joining Kastamonu University. His research interests include algebra, number theory, geometry, generalized quaternions, octonions, and recurrence sequences. He has held several administrative positions, including Vice Dean and Deputy Head of Department. He teaches undergraduate and graduate courses and has supervised numerous master’s and doctoral theses, particularly on quaternionic and octonionic structures associated with Fibonacci, Lucas, Pell, Jacobsthal, and Tribonacci sequences.