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Square roots of elliptic systems in locally uniform domains
紀錄類型:
書目-語言資料,印刷品 : Monograph/item
正題名/作者:
Square roots of elliptic systems in locally uniform domains/ by Sebastian Bechtel.
作者:
Bechtel, Sebastian.
出版者:
Cham :Springer International Publishing : : 2024.,
面頁冊數:
ix, 188 p. :ill., digital ; : 24 cm.;
Contained By:
Springer Nature eBook
標題:
Operator theory. -
電子資源:
https://doi.org/10.1007/978-3-031-63768-1
ISBN:
9783031637681
Square roots of elliptic systems in locally uniform domains
Bechtel, Sebastian.
Square roots of elliptic systems in locally uniform domains
[electronic resource] /by Sebastian Bechtel. - Cham :Springer International Publishing :2024. - ix, 188 p. :ill., digital ;24 cm. - Linear operators and linear systems,v. 3032504-3617 ;. - Linear operators and linear systems ;v. 303..
Introduction -- Locally uniform domains -- A density result for locally uniform domains -- Sobolev extension operator -- A short account on sectorial and bisectorial operators -- Elliptic systems in divergence form -- Porous sets -- Sobolev spaces with a vanishing trace condition -- Hardy's inequality -- Real interpolation of Sobolev spaces -- Higher regularity for fractional powers of the Laplacian -- First order formalism -- Kato's square root property on thick sets -- Removing the thickness condition -- Interlude: Extension operators for fractional Sobolev spaces -- Critical numbers and Lp - Lq bounded families of operators -- Lp-bounds for the H1-calculus and Riesz transform -- Calder'on-Zygmund decomposition for Sobolev functions -- Lp bounds for square roots of elliptic systems -- References -- Index.
This book establishes a comprehensive theory to treat square roots of elliptic systems incorporating mixed boundary conditions under minimal geometric assumptions. To lay the groundwork, the text begins by introducing the geometry of locally uniform domains and establishes theory for function spaces on locally uniform domains, including interpolation theory and extension operators. In these introductory parts, fundamental knowledge on function spaces, interpolation theory and geometric measure theory and fractional dimensions are recalled, making the main content of the book easier to comprehend. The centerpiece of the book is the solution to Kato's square root problem on locally uniform domains. The Kato result is complemented by corresponding Lᵖ bounds in natural intervals of integrability parameters. This book will be useful to researchers in harmonic analysis, functional analysis and related areas.
ISBN: 9783031637681
Standard No.: 10.1007/978-3-031-63768-1doiSubjects--Topical Terms:
527910
Operator theory.
LC Class. No.: QA329
Dewey Class. No.: 515.724
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