Null-controllability and Carleman estimates for non-autonomous degenerate PDEs: A climatological application

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-10-28 DOI:10.1016/j.jmaa.2024.128984

Mohammad Akil , Genni Fragnelli , Sarah Ismail

引用次数: 0

Abstract

Inspired by a Budyko-Seller model, we consider non-autonomous degenerate parabolic equations. As a first step, using Kato's Theorem we prove the well-posedness of such problems. Then, obtaining new Carleman estimates for the non-homogeneous non-autonomous adjoint problems, we deduce null-controllability for the original ones. Some linear and semilinear extensions are also considered. We conclude the paper applying the obtained controllability result to the Budyko-Seller model given in the introduction.

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非自治退化 PDE 的无效可控性和卡勒曼估计：气候学应用

受布迪科-塞勒模型的启发，我们考虑了非自治退化抛物方程。首先，我们利用加藤定理证明了此类问题的好求性。然后，通过对非均质非自治邻接问题进行新的卡勒曼估计，我们推导出原始问题的空可控性。我们还考虑了一些线性和半线性扩展问题。最后，我们将获得的可控性结果应用于引言中给出的布迪科-塞勒模型。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.