The method of layer potentials in Lp and endpoint spaces for elliptic operators with L∞ coefficients
The method of layer potentials in Lp and endpoint spaces for elliptic operators with L∞ coefficients
复制标题
具有L∞系数的椭圆算子在Lp和端点空间中的层势方法
DOI:
10.1112/plms/pdv035
复制
发表时间:
2013
影响因子:
1.8
通讯作者:
Andrew J. Morris
中科院分区:
文献类型:
--
作者:
S. Hofmann;M. Mitrea;Andrew J. Morris
We consider layer potentials associated to elliptic operators Lu=−div(A∇u) acting in the upper half‐space R+n+1 for n⩾2 , or more generally, in a Lipschitz graph domain, where the coefficient matrix A is L∞ ‐ and t ‐independent, and solutions of Lu=0 satisfy interior estimates of De Giorgi/Nash/Moser type. A ‘Calderón–Zygmund’ theory is developed for the boundedness of layer potentials, whereby sharp Lp and endpoint space bounds are deduced from L2 ‐bounds. Appropriate versions of the classical ‘jump relation’ formulae are also derived. The method of layer potentials is then used to establish well‐posedness of boundary value problems for L with data in Lp and endpoint spaces.