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Blow‐up in a parabolic–elliptic Keller–Segel system with density‐dependent sublinear sensitivity and logistic source
Mathematical Methods in the Applied Sciences ( IF 2.1 ) Pub Date : 2020-05-10 , DOI: 10.1002/mma.6475 Yuya Tanaka 1 , Tomomi Yokota 1
Mathematical Methods in the Applied Sciences ( IF 2.1 ) Pub Date : 2020-05-10 , DOI: 10.1002/mma.6475 Yuya Tanaka 1 , Tomomi Yokota 1
Affiliation
This paper deals with the parabolic–elliptic Keller–Segel system with density‐dependent sublinear sensitivity and logistic source,
where is a ball with some R>0 and χ>0, 0<α<1, , μ>0, and κ>1. In the case α=1, Winkler (Z. Angew. Math. Phys.; 2018; 69: 40) discovered the condition for κ such that solutions blow up in finite time. The purpose of the present paper is to find conditions for α and κ such that there exist solutions that blow up in finite time in the case of weak‐chemotactic sensitivity, that is, in the case 0<α<1.
中文翻译:
抛物线-椭圆Keller-Segel系统中的爆破,具有依赖于密度的亚线性灵敏度和逻辑源
本文讨论的是抛物线-椭圆Keller-Segel系统,它具有依赖于密度的亚线性灵敏度和逻辑源,
哪里 是一个球,其中一些R > 0和χ > 0,0 < α <1,,μ > 0,且κ > 1。在α = 1的情况下,Winkler(Z.Angew.Math.Phys。; 2018; 69:40)发现了κ的条件,使得溶液在有限时间内爆炸。本文的目的是找到α和κ的条件,以便在弱趋化敏感性的情况下(即在0 < α <1的情况下)存在在有限时间内爆炸的解决方案。
更新日期:2020-05-10
中文翻译:
抛物线-椭圆Keller-Segel系统中的爆破,具有依赖于密度的亚线性灵敏度和逻辑源
本文讨论的是抛物线-椭圆Keller-Segel系统,它具有依赖于密度的亚线性灵敏度和逻辑源,