This paper deals with the investigation of the solution of an unified fractional reaction-diffusion equation of distributed order associated with the Caputo derivatives as the time-derivative and Riesz-Feller fractional derivative as the space-derivative. The solution is derived by the application of the joint Laplace and Fourier transforms in compact and closed form in terms of the H-function. The results derived are of general nature and include the results investigated earlier by other authors, notably by Mainardi et al. [23,24], for the fundamental solution of the space-time fractional equation, including Haubold et al. [13] and Saxena et al. [38] for fractional reaction-diffusion equations. The advantage of using the Riesz-Feller derivative lies in the fact that the solution of the fractional reaction-diffusion equation, containing this derivative, includes the fundamental solution for space-time fractional diffusion, which itself is a generalization of fractional diffusion, space-time fraction diffusion, and time-fractional diffusion. These specialized types of diffusion can be interpreted as spatial probability density functions evolving in time and are expressible in terms of the H-function in compact forms. The convergence conditions for the double series occurring in the solutions are investigated. It is interesting to observe that the double series comes out to be a special case of the Srivastava-Daoust hypergeometric function of two variables given in the Appendix B of this paper.
Exact results for a fractional derivative of elementary functions
We present exact analytical results for the Caputo fractional derivative of a wide class of elementary functions, including trigonometric and inverse trigonometric, hyperbolic and inverse hyperbolic, Gaussian, quartic Gaussian, and Lorentzian functions. These results are especially important for multi-scale physical systems, such as porous materials, disordered media, and turbulent fluids, in which transport is described by fractional partial differential equations. The exact results for the Caputo fractional derivative are obtained from a single generalized Euler's integral transform of the g…
Existence and Uniqueness of the Solution to a Nonlinear Differential Equation with Caputo Fractional Derivative in the Space of Continuously Differentiable Functions
Fractional Noether's Theorem with Classical and Caputo Derivatives: constants of motion for non-conservative systems
由于开创性的工作，埃米诺特是众所周知的，所有守恒定律在物理学，\textrm{e.g.}，守恒的能量或守恒的动量，是直接关系到不变性的行动下的家庭的转变。然而，经典的Noether定理不能给出关于非保守系统的运动常数的信息，因为经典的变分法不可能为这类系统制定物理上有意义的拉格朗日方程。另一方面，近年来，拉格朗日函数中的分数阶变分法（fractional calculus of variation）依赖于分数阶导数，已经成为研究非保守系统的一种优雅的选择。在目前的工作中，我们得到了一个推广的Noether定理的拉格朗日依赖于混合经典和Caputo衍生物，可用于获得耗散系统的运动常数。此外，我们还得到了分数阶最优控制问题的Noether条件.
Delay Modeling with Conformable and Caputo Derivatives: Analytical and Computational Insights
Universidad Católica del Norte（天主教主教大学）；Universidad de Antofagasta（安托法加斯塔大学）；Durban University of Technology（德班理工大学）；North-West University（西北大学）；Universidad Iberoamericana Ciudad de México（墨西哥城伊比利亚美洲大学）；Universidad de Tarapaca（塔拉帕卡大学）
A boundary-value problem for a mixed type equation involving hyper-Bessel fractional differential operator and Hilfer's bi-ordinal fractional derivative
