AbstractHumans are always at risk of infectious diseases. It has been proven that there is a direct relationship between the strength or weakness of the immune system and infectious diseases such as tuberculosis, hepatitis, AIDS and Covid-19. More- over, mathematical models have been proven to be excellent tools for describing complex biological phenomena. In this research, we present some new approxi- mate solutions for a computational formula that models the relationship between tumor growth and the immune system with several fractional and fractal models. The operators used in this model are Liouville-Caputo, Caputo-Fabrizio-Caputo and Atangana-Baleano-Caputo.The existence and uniqueness of the solution in each of these cases.
On the modeling of the interaction between tumor growth and the immune system using some new fractional and fractional-fractal operators.