a mathematical model for cancer by using immunotherapy

In this paper, an effective treatment strategy for optimal control of cancer cells in a limited time is investigated. in order to improve the treatment of cancer cells through tumor-immune interactions, a nonlinear mathematical model using immunotherapy is analyzed. the main goal of this research is to reach the conditions under which cancer cells can be effectively controlled. for this purpose, by designing a quadratic control function, optimal treatment strategies are created that maximize the number of immune effector cells and minimize the number of cancer cells.