Basic Concepts of Fractional Differential Equations

Fractional calculus is a field of mathematics study that grows out of the traditional definitions of calculus integral and derivative operators in much the same way fractional exponents is an outgrowth of exponents with an integer value.It is generally known that integer-order derivatives and integrals have clear physical and geometric interpretations. However in case of fractional-order integration and differentiation which represent a rapidly qrowing field both in theory and in applications to real world problems it is not so. Since the appearance of the idea of differentiation and integration of arbitrary (not necessary integer) order there was not any acceptable geometric and physical interpretationof these operations for more than 300 years.