TY - JOUR AU - Cruz, Fátima AU - Almeida, Ricardo AU - Martins, Natália PY - 2025 TI - A Pontryagin maximum principle for optimal control problems involving generalized distributional-order derivatives JO - AIMS Mathematics SP - 11939 EP - 11956 VL - 10 IS - 5 AB - In this work, we extended fractional optimal control (OC) theory by proving a version of Pontryagin's maximum principle and establishing sufficient optimality conditions for an OC problem. The dynamical system constraint in the OC problem under investigation is described by a generalized fractional derivative: the left-sided Caputo distributed-order fractional derivative with an arbitrary kernel. This approach provides a more versatile representation of dynamic processes, accommodating a broader range of memory effects and hereditary properties inherent in diverse physical, biological, and engineering systems. UR - https://doi.org/10.3934/math.2025539 DO - 10.3934/math.2025539