arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2005.09637math.AP
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关于$L^\infty$中完全nonlinear elliptic PDE的反源识别问题

On the inverse source identification problem in $L^\infty$ for fully nonlinear elliptic PDE

Birzhan Ayanbayev, Nikos Katzourakis

摘要:

本文推广了文[N. Katzourakis,一种$L^\infty$正则化策略用于椭圆型方程的逆源识别问题,SIAM J. Math. Anal. 51:2,1349-1370(2019)]通过研究识别完全非线性椭圆方程的源的不适定问题。我们假设Dirichlet数据和一些部分噪声信息的解决方案通过一个完全非线性观测算子紧集。我们处理的高度非线性非凸性质的问题和缺乏弱连续性,通过引入一个两参数Tykhonov正则化与高阶$L^2$“粘性项”的$L^\infty$最小化问题,它允许近似由弱较低的连续成本泛函。

英文摘要:

In this paper we generalise the results proved in [N. Katzourakis, An $L^\infty$ regularisation strategy to the inverse source identification problem for elliptic equations, SIAM J. Math. Anal. 51:2, 1349-1370 (2019)] by studying the ill-posed problem of identifying the source of a fully nonlinear elliptic equation. We assume Dirichlet data and some partial noisy information for the solution on a compact set through a fully nonlinear observation operator. We deal with the highly nonlinear nonconvex nature of the problem and the lack of weak continuity by introducing a two-parameter Tykhonov regularisation with a higher order $L^2$ "viscosity term" for the $L^\infty$ minimisation problem which allows to approximate by weakly lower semicontinuous cost functionals.

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。

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