Renormalized solutions of degenerate elliptic problems

Renormalized solutions of degenerate elliptic problems
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DOI:
10.1016/j.jde.2006.12.004
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发表时间:
2007-03
影响因子:
2.4
通讯作者:
K. Ammar
K. Ammar
中科院分区:
数学2区
文献类型:
--
作者:
K. Ammar

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考虑一类退化椭圆型问题Au+g(x,u,Du)=f,其中A是从加权Sobolev空间到其对偶空间的Leray-Lions算子.我们假设g(x,s,n)是一个Caratheodory函数,证明了n上的一个符号条件和一个增长条件。重整化解的存在性是在L1-设置。
We consider a general class of degenerate elliptic problems of the form Au+g(x,u,Du)=f, where A is a Leray–Lions operator from a weighted Sobolev space into its dual. We assume that g(x,s,ξ) is a Caratheodory function verifying a sign condition and a growth condition on ξ. Existence of renormalized solutions is established in the L1-setting.