Fractional model

The term "fractional model" can refer to various concepts depending on the context. Here are a few interpretations: 1. **Fractional Calculus**: In mathematics, fractional models often refer to systems described by fractional calculus, which extends traditional calculus concepts to allow for derivatives and integrals of non-integer (fractional) orders. This can be useful in modeling complex systems where memory and hereditary properties play a significant role, such as in certain physical, biological, and economic systems.