A hybrid variational principle for the Keller-Segel system in R 2
A hybrid variational principle for the Keller-Segel system in R 2
复制标题
R 2 中 Keller-Segel 系统的混合变分原理
DOI:
10.1051/m2an/2015021
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发表时间:
2015
期刊:
影响因子:
--
通讯作者:
Blanchet A
中科院分区:
文献类型:
--
作者:
Blanchet A
We construct weak global in time solutions to the classical Keller–Segel system describing cell movement by chemotaxis in two dimensions when the total mass is below the established critical value. Our construction takes advantage of the fact that the Keller–Segel system can be realized as a gradient flow in a suitable functional product space. This allows us to employ a hybrid variational principle which is a generalisation of the minimizing implicit scheme for Wasserstein distances introduced by [R. Jordan, D. Kinderlehrer and F. Otto,SIAM J. Math. Anal.29(1998) 1–17].