​In Memory of Professor Hassan Salehi Fathabadi,

It is with deep sadness that we announce the passing of Professor Hassan Salehi Fathabadi, a respected and valued member of the Editorial Board of the Iranian Journal of Numerical Analysis and Optimization (IJNAO). Professor Salehi Fathabadi has been a part of the journal since its inception and played an instrumental role in shaping its vision and upholding its academic standards. His dedication, expertise, and unwavering commitment to advancing the optimization field have left an indelible mark on the journal and the broader scientific community. We extend our heartfelt condolences to his family, friends, colleagues, and all those whose lives he touched. His absence will be deeply felt, but his contributions will continue to inspire and guide us. May his soul rest in peace.