Results 41 to 50 of about 2,952,428 (298)

Solutions of the Fractional Reaction Equation and the Fractional Diffusion Equation [PDF]

open access: yes, 2009
In view of the role of reaction equations in physical problems, the authors derive the explicit solution of a fractional reaction equation of general character, that unifies and extends earlier results. Further, an alternative shorter method based on a result developed by the authors is given to derive the solution of a fractional diffusion equation ...
Saxena, R. K.   +2 more
openaire   +2 more sources

A new class of travelling wave solutions for local fractional diffusion differential equations

open access: yesAdvances in Difference Equations, 2020
In this paper, we investigate a 3-D diffusion equation within the scope of the local fractional derivative. For this model, we establish local fractional vector operators and a local fractional Laplace operator defined on Cantor-type cylindrical ...
Ziyue Shi, Wei Qi, Jing Fan
doaj   +1 more source

Simultaneous determination of a source term and diffusion concentration for a multi-term space-time fractional diffusion equation

open access: yesMathematical Modelling and Analysis, 2021
An inverse problem of determining a time dependent source term along with diffusion/temperature concentration from a non-local over-specified condition for a space-time fractional diffusion equation is considered.
Salman A. Malik   +2 more
doaj   +1 more source

Fractional Diffusion Models for the Atmosphere of Mars

open access: yesFractal and Fractional, 2017
The dust aerosols floating in the atmosphere of Mars cause an attenuation of the solar radiation traversing the atmosphere that cannot be modeled through the use of classical diffusion processes.
Salvador Jiménez   +3 more
doaj   +1 more source

Numeric Fem’s Solution for Space-Time Diffusion Partial Differential Equations with Caputo–Fabrizion and Riemann–Liouville Fractional Order’s Derivatives

open access: yesAnnales Mathematicae Silesianae, 2023
In this paper, we use the finite element method to solve the fractional space-time diffusion equation over finite fields. This equation is obtained from the standard diffusion equation by replacing the first temporal derivative with the new fractional ...
Boutiba Malika   +2 more
doaj   +1 more source

Analytical Solutions of the Diffusion–Wave Equation of Groundwater Flow with Distributed-Order of Atangana–Baleanu Fractional Derivative

open access: yesApplied Sciences, 2021
A generalized mathematical model of the radial groundwater flow to or from a well is studied using the time-fractional derivative with Mittag-Lefler kernel.
Nehad Ali Shah   +4 more
doaj   +1 more source

Cauchy problem for nonlocal diffusion equations modelling Lévy flights

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2022
In the present paper, we study the time-space fractional diffusion equation involving the Caputo differential operator and the fractional Laplacian. This equation describes the Lévy flight with the Brownian motion component and the drift component. First,
Chung-Sik Sin
doaj   +1 more source

Numerical Study Of The Spatial Fractional Advection-Diffusion Equation

open access: yes, 2021
Here we discuss the advection-diffusion equation with diffusion fractional in one dimension. The study provides a Riemann-Liouville fractional derivative (RLFD) to obtain an implicit scheme of space fractional advection-diffusion equation (SFADE).
et. al., Swapnali Doley,
core   +1 more source

A scalable framework for solving fractional diffusion equations [PDF]

open access: yesProceedings of the 34th ACM International Conference on Supercomputing, 2020
The study of fractional order differential operators is receiving renewed attention in many scientific fields. In order to accommodate researchers doing work in these areas, there is a need for highly scalable numerical methods for solving partial differential equations that involve fractional order operators on complex geometries. These operators have
Max Carlson   +2 more
openaire   +3 more sources

On a Fractional Master Equation

open access: yesInternational Journal of Differential Equations, 2011
A fractional order time-independent form of the wave equation or diffusion equation in two dimensions is obtained from the standard time-independent form of the wave equation or diffusion equation in two-dimensions by replacing the integer order partial ...
Anitha Thomas
doaj   +1 more source

Home - About - Disclaimer - Privacy