A Spatial Structural Derivative Model for Ultraslow Diffusion
Statistical Mechanics
2017-06-14 v2
Abstract
This study investigates the ultraslow diffusion by a spatial structural derivative, in which the exponential function exp(x)is selected as the structural function to construct the local structural derivative diffusion equation model. The analytical solution of the diffusion equation is a form of Biexponential distribution. Its corresponding mean squared displacement is numerically calculated, and increases more slowly than the logarithmic function of time. The local structural derivative diffusion equation with the structural function exp(x)in space is an alternative physical and mathematical modeling model to characterize a kind of ultraslow diffusion.
Cite
@article{arxiv.1705.01542,
title = {A Spatial Structural Derivative Model for Ultraslow Diffusion},
author = {Wei Xu and Wen Chen and Yingjie Liang and Jose Weberszpil},
journal= {arXiv preprint arXiv:1705.01542},
year = {2017}
}
Comments
13 pages, 3 figures