Unidirectional evolution equations of diffusion type
Analysis of PDEs
2015-01-07 v1
Abstract
This paper is concerned with the uniqueness, existence, comparison principle and long-time behavior of solutions to the initial-boundary value problem for a unidirectional diffusion equation. The unidirectional evolution often appears in Damage Mechanics due to the strong irreversibility of crack propagation or damage evolution. The existence of solutions is proved in an L^2-framework by introducing a peculiar discretization of the unidirectional diffusion equation by means of variational inequities of obstacle type and by developing a regularity theory for such variational inequalities. The novel discretization argument will be also applied to prove the comparison principle as well as to investigate the long-time behavior of solutions.
Cite
@article{arxiv.1501.01072,
title = {Unidirectional evolution equations of diffusion type},
author = {Goro Akagi and Masato Kimura},
journal= {arXiv preprint arXiv:1501.01072},
year = {2015}
}