On the dynamical investigation and synchronization of variable-order fractional neural networks: the Hopfield-like neural network modelHadi Jahanshahi, Ernesto Zambrano-Serrano, Stelios Bekiros, Zhouchao Wei, Christos Volos, Oscar Castillo and Ayman A. AlyEur. Phys. J. Spec. Top., 231 10 (2022) 1757-1769DOI: https://doi.org/10.1140/epjs/s11734-022-00450-8