The Dirichlet problem for second order parabolic operators in divergence form

The Dirichlet problem for second order parabolic operators in divergence form
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散度形式二阶抛物线算子的狄利克雷问题

DOI:
10.5802/jep.74
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发表时间:
2016
期刊:
arXiv: Analysis of PDEs
影响因子:
--
通讯作者:
K. Nystrom
K. Nystrom
中科院分区:
--
文献类型:
--
作者:
P. Auscher;Moritz Egert;K. Nystrom

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研究抛物型上半空间Rn +2 + = {($\lambda$,x,t):$\lambda$ > 0}中的抛物型算子H = $\partial$t -- div $\lambda $,x A(x,t)$\nabla$ $\lambda$,x.我们假设系数是真实的,有界的,可测的,一致椭圆的,但不一定对称。我们证明了在A$\infty$(dx dt)定义的意义下,相关的抛物测度相对于Rn +1上的曲面测度是绝对连续的.我们的论证也给出了椭圆测度相应结果的一个简化证明。
We study parabolic operators H = $\partial$t -- div $\lambda$,x A(x, t)$\nabla$ $\lambda$,x in the parabolic upper half space R n+2 + = {($\lambda$, x, t) : $\lambda$ > 0}. We assume that the coefficients are real, bounded, measurable, uniformly elliptic, but not necessarily symmetric. We prove that the associated parabolic measure is absolutely continuous with respect to the surface measure on R n+1 in the sense defined by A$\infty$(dx dt). Our argument also gives a simplified proof of the corresponding result for elliptic measure.
二阶抛物线算子的 BMO 可解性和 $A_infty$ 条件
DOI: 10.48550/arxiv.1510.05813
发表时间: 2015
期刊: arXiv e-prints
影响因子: --
作者:
Dindo
通讯作者: Dindo