NONLOCAL PROBLEMS FOR A MIXED FRACTIONAL ORDER EQUATION

In recent years, interest has increased in the study of fractional order differential equations in which the unknown function is contained under the sign of the fractional order derivative. This is due both to the development of the theory of fractional integration and differentiation itself, and to applications in various fields of science: physics, mechanics, chemistry, engineering, anomalous diffusion processes and other areas of natural science.