%0 Journal Article %T Comparison of random search and gradient-based optimization techniques on design improvement of permanent magnet synchronous motor %A ÖYLEK, Ä. %A VARAN, M. %A ERDUMAN, A. %A ZENGIN, A. %J Sigma Journal of Engineering and Natural Sciences %D 2026 %V 44 %P 1686-1699 %R 10.14744/sigma.2025.00058