Regularity for the weak solutions to certain parabolic systems under certain growth condition

Regularity for the weak solutions to certain parabolic systems under certain growth condition
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某些抛物线系统在一定生长条件下弱解的正则性

DOI:
10.1016/j.jmaa.2018.08.014
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发表时间:
2018-12
期刊:
J. Math. Anal. Appl.
影响因子:
--
通讯作者:
Tan Zhong
Tan Zhong
中科院分区:
其他
文献类型:
--
作者:
Jia Cuiman;Tan Zhong

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本文考虑一类拟线性抛物方程组弱解的正则性,它是p-拉普拉斯方程的推广:−(Aαi(∇u))xα=fi(x,t,u,∇u),i=1,…,N,其中主体满足一定的椭圆性,f_i满足一定的增长条件。本文利用能量估计和Moser型非线性迭代程序证明了该系统解的有界性和解的梯度。
In this paper, we consider the regularity of the weak solutions to a quasilinear parabolic systems which is a generalization of p-Laplacian of the type u t i−(A α i (∇ u)) x α= f i (x, t, u,∇ u), i= 1,…, N where the main part satisfies some ellipticity and f i satisfies certain growth conditions. We prove boundedness of the solutions and the gradients of solutions to the systems by the means of the energy estimates and a nonlinear iteration procedure of the Moser type in this paper.
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