TY - JOUR TI - Regularity for a non-local diffusion equation with Riemann-Liouville derivative AU - Tuan Nguyen Hoang AU - Kumar Devendra AU - Nguyen Anh Tuan JN - Thermal Science PY - 2023 VL - 27 IS - 101 SP - 373 EP - 382 PT - Article AB - Our main goal in this paper is to investigate the regularity of the mild solution fractional diffusion equation which can be used in the modelling of heat transfer with memory effects. Under some various assumptions of the input data, we obtain two main results. We also provide the upper bound and lower bound of the source function. The main tool is to use complex evaluations involving the Wright function.