Li , MengyuLiu , TiegangCao , KuiFeng , ChengliangZhang , Bin and Yuan , Weixiong. (2025). Entirely Exponential-Type Scheme (E2S) for Optimization Problems with Singularly Perturbed ODE Constraints: The Model Problem.
Numerical Mathematics: Theory, Methods and Applications. 18 (3).
817-844.
doi:10.4208/nmtma.OA-2024-0135