【24h】

ON A PARABOLIC-ODE SYSTEM OF CHEMOTAXIS

机译:在趋化子 - 趋化性趋化性 - 趋化学系统上

获取原文
获取原文并翻译 | 示例
           

摘要

In this article we consider a coupled system of differential equations to describe the evolution of a biological species. The system consists of two equations, a second order parabolic PDE of nonlinear type coupled to an ODE. The system contains chemotactic terms with constant chemotaxis coefficient describing the evolution of a biological species "u" which moves towards a higher concentration of a chemical species "v" in a bounded domain of R~n. The chemical "v" is assumed to be a non-diffusive substance or with neglectable diffusion properties, satisfying the equation v_t = h(u,v). We obtain results concerning the bifurcation of constant steady states under the assumption h_v + χuh_u > 0 with growth terms g. The Parabolic-ODE problem is also considered for the case hv +χuh_u =0 without growth terms, i.e. g ≡ 0. Global existence of solutions is obtained for a range of initial data.
机译:在本文中,我们考虑一个耦合系统的微分方程,以描述生物物种的演变。该系统由两个等式组成,非线性类型的二阶抛物面PDE耦合到颂歌。该系统含有趋化术语,恒定的趋化系数描述了生物物种“U”的演变,其在R〜N的有界域中朝向更高浓度的化学物质“V”。将化学“V”假设是非漫射物质或可忽略的扩散特性,满足等式V_T = H(U,V)。我们在假设H_V +χUH_U> 0下获得恒定稳态分叉的结果,增长术语G.抛物面 - 颂歌问题也考虑了案例HV +χUH_U= 0而不进行增长术语,即G≡0。G≠0。获得了一系列初始数据的解决方案存在。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号