On (2 + 1)-dimensional physical models endowed with decoupled spatial and temporal memory indices⋆Imad Jaradat, Marwan Alquran, Feras Yousef, Shaher Momani and Dumitru BaleanuEur. Phys. J. Plus, 134 7 (2019) 360DOI: https://doi.org/10.1140/epjp/i2019-12769-8