Global solutions of a doubly tactic resource consumption model with logistic source
Analysis of PDEs
2022-01-19 v1
Abstract
We study a doubly tactic resource consumption model \bess \left\{\begin{array}{lll} u_t=\tr u-\nabla\cd(u\nabla w),\\[1mm] v_t=\tr v-\nabla\cd(v\nabla u)+v(1-v^{\beta-1}),\\[1mm] w_t=\tr w-(u+v)w-w+r \end{array}\right. \eess in a smooth bounded domain with homogeneous Neumann boundary conditions, where is a given nonnegative function fulfilling \bess \int_t^{t+1}\ii|\nn\sqrt{r}|^2<\yy\ \ \ \ \ \ for\ all\ t>0. \eess It is shown that, firstly, if , then the corresponding Neumann initial-boundary problem admits a global bounded classical solution. Secondly, when , the Neumann initial-boundary problem admits a global generalized solution.
Cite
@article{arxiv.2108.08031,
title = {Global solutions of a doubly tactic resource consumption model with logistic source},
author = {Jianping Wang},
journal= {arXiv preprint arXiv:2108.08031},
year = {2022}
}
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21 pages