The Second-Level General Fractional Derivatives and Applications

Main Article Content

H. P. Masiha, M. Ghasemi, Manuel De La Sen

Abstract

In the theory of fractional calculus, we focus on the general fractional calculus because it provides a more precise and flexible modeling tool for a wide range of complex dynamical systems. We initially consider the Sonin and Kochubei kernels along with their key properties. The primary purpose of this article is to develop general fractional derivatives (GFDs) of the first level up to the second level. Compared with the 1st level GFDs, the second-level operators are constructed from the convolution of three kernels. We also present specific features of the second-level GFDs, including the first and second fundamental theorems of fractional calculus with an additional condition and appropriately defined general fractional integrals. Afterward, we establish the Laplace transform of the second-level GFDs, and we find a solution for the fractional relaxation equations with these second-level operators.

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