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arXiv 1201.4573math.AP
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可测系数椭圆和抛物算子的若干$L_{p}$ -估计

Some $L_{p}$-estimates for elliptic and parabolic operators with measurable coefficients

N. V. Krylov

摘要:

本文考虑系数可测的线性椭圆型和抛物型方程,证明了其解的两类$L_{p}$ -估计,这两类估计最近在\cite{DKL}中用于完全非线性椭圆型和抛物型二阶方程的理论.第一类是二阶导数的$γ$次范数的估计,其中$γ\in(0,1)$,第二类是当一阶系数可加到适当的幂时,$L_{p}$中预解算子的估计。

英文摘要:

We consider linear elliptic and parabolic equations with measurable coefficients and prove two types of $L_{p}$-estimates for their solutions, which were recently used in the theory of fully nonlinear elliptic and parabolic second order equations in \cite{DKL}. The first type is an estimate of the $γ$th norm of the second-order derivatives, where $γ\in(0,1)$, and the second type deals with estimates of the resolvent operators in $L_{p}$ when the first-order coefficients are summable to an appropriate power.

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