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Finite-time blow-up and global boundedness for chemotaxis system with strong logistic dampening
Journal of Mathematical Analysis and Applications ( IF 1.3 ) Pub Date : 2020-01-14 , DOI: 10.1016/j.jmaa.2020.123876 Xinyu Tu , Shuyan Qiu
中文翻译:
具有强大逻辑阻尼的趋化系统的有限时间爆破和全局有界性
更新日期:2020-01-14
Journal of Mathematical Analysis and Applications ( IF 1.3 ) Pub Date : 2020-01-14 , DOI: 10.1016/j.jmaa.2020.123876 Xinyu Tu , Shuyan Qiu
In the present study, we consider the chemotaxis system with logistic-type superlinear degradation under the homogeneous Neumann boundary condition, where , , , , , . Consider an arbitrary ball , when , it is shown that for any parameter satisfies there exist nonnegative radially symmetric initial data under suitable conditions such that the corresponding solutions blow up in finite time in the sense that Furthermore, for any smooth bounded domain , when , we prove that the system admits a unique global bounded solution.
中文翻译:
具有强大逻辑阻尼的趋化系统的有限时间爆破和全局有界性
在本研究中,我们考虑具有logistic型超线性退化的趋化系统 在齐次Neumann边界条件下, , , , , , 。考虑一个任意球, 什么时候 ,表明对于任何参数 满足 在适当的条件下存在非负的径向对称初始数据,使得相应的解在有限的时间内爆炸, 此外,对于任何光滑有界域 , 什么时候 ,我们证明系统接受了唯一的全局有界解决方案。