Awadh IA, Mohsen SD. On Analytical Solutions of Operator Equation Constructed by The Adjointable Operator. Iraqi Journal of Science [Internet]. 2026 Feb. 28 [cited 2026 Apr. 22];67(2):1026-35. Available from: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/14497