arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2408.12295math.AP
收藏

具有一般漂移项和 $L^1$-零阶项的线性椭圆方程分析

Analysis of linear elliptic equations with general drifts and $L^1$-zero-order terms

Haesung Lee

AI总结:

本文研究了具有一般漂移项和 $L^1$-零阶项的线性椭圆方程 Dirichlet 边值问题,通过将漂移项转化为弱无散度形式,证明了弱解和强解的存在唯一性,并指出估计常数可显式计算以应用于误差分析。

摘要:

本文对具有 $L^p$-一般漂移项(其中 $p \in (d, \infty)$)和非负 $L^1$-零阶项的散度型线性椭圆方程的 Dirichlet 边值问题进行了详细分析。具体而言,通过将一般漂移项转化为弱无散度漂移项,我们建立了有界弱解的存在性与唯一性,并证明零阶项不影响唯一弱解的量值。此外,通过对扩散系数施加 $VMO$ 条件和温和可微性,并假设 $L^s$-零阶项满足 $s \in (1, \infty)$,我们证明了相应非散度型方程强解的存在性与唯一性。本文的一个重要特征是,由于变换后方程中漂移项的弱无散度性质,我们估计中出现的常数可以被显式计算,这有望在误差分析中提供重要应用。

英文摘要:

This paper provides a detailed analysis of the Dirichlet boundary value problem for linear elliptic equations in divergence form with $L^p$-general drifts, where $p \in (d, \infty)$, and non-negative $L^1$-zero-order terms. Specifically, by transforming the general drifts into weak divergence-free drifts, we establish the existence and uniqueness of a bounded weak solution, showing that the zero-order term does not influence the quantity of the unique weak solution. Additionally, by imposing the $ VMO$ condition and mild differentiability on the diffusion coefficients and assuming an $L^s$-zero-order terms with $s \in (1, \infty)$, we demonstrate the existence and uniqueness of a strong solution for the corresponding non-divergence type equations. An important feature of this paper is that, due to the weak divergence-free property of the drifts in the transformed equations, the constants appearing in our estimates can be explicitly calculated, which is expected to offer significant applications in error analysis.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑