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Titlebook: Sobolev Maps to the Circle; From the Perspective Haim Brezis,Petru Mironescu Book 2021 Springer Science+Business Media, LLC, part of Spring

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书目名称Sobolev Maps to the Circle
副标题From the Perspective
编辑Haim Brezis,Petru Mironescu
视频video
概述First monograph to offer a unified and comprehensive treatment of Sobolev maps to the circle.Explores surprising connections with other areas of mathematics, such as optimal transport, geometric measu
丛书名称Progress in Nonlinear Differential Equations and Their Applications
图书封面Titlebook: Sobolev Maps to the Circle; From the Perspective Haim Brezis,Petru Mironescu Book 2021 Springer Science+Business Media, LLC, part of Spring
描述The theory of real-valued Sobolev functions is a classical part of analysis and has a wide range of applications in pure and applied mathematics. By contrast, the study of manifold-valued Sobolev maps is relatively new. The incentive to explore these spaces arose in the last forty years from geometry and physics.  This monograph is the first to provide a unified, comprehensive treatment of Sobolev maps to the circle, presenting numerous results obtained by the authors and others. Many surprising connections to other areas of mathematics are explored, including the Monge-Kantorovich theory in optimal transport, items in geometric measure theory, Fourier series, and non-local functionals occurring, for example, as denoising filters in image processing. Numerous digressions provide a glimpse of the theory of sphere-valued Sobolev maps. .Each chapter focuses on a single topic and starts with a detailed overview, followed by the most significant results, and rather complete proofs. The “Complements and Open Problems” sections provide short introductions to various subsequent developments or related topics, and suggest new.directions of research.  Historical perspectives and a comprehens
出版日期Book 2021
关键词Sobolev spaces; Sobolev Norms; BV functions; Sphere-valued maps; Plateau problem; Optimal Transport
版次1
doihttps://doi.org/10.1007/978-1-0716-1512-6
isbn_ebook978-1-0716-1512-6Series ISSN 1421-1750 Series E-ISSN 2374-0280
issn_series 1421-1750
copyrightSpringer Science+Business Media, LLC, part of Springer Nature 2021
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Lifting in fractional Sobolev spaces and in ,s smooth as . permits.” The difference with Chapter . is that . belongs either to a fractional Sobolev space . (whose definition is recalled in Section .), or to the space . (functions of vanishing mean oscillation, whose definition is recalled in Section . below).
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Uniqueness of lifting and beyond,we have two liftings, ., .. Then, . for some .. Therefore, we are led to the question of finding minimal assumptions on a measurable function . implying that . must be constant. Clearly, continuity is sufficient, but, as we are going to see, constancy holds for a surprisingly large class of function
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Degree,w many times . covers ., taking into account algebraic multiplicity.” One can still give a robust definition for . when . belongs merely to ., and thus, by the Sobolev embeddings, for maps in the critical spaces ., with .. We establish some basic properties of this degree.
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The geometry of , and , in 2D; point singularities and minimal connections, generally, if . is a “nice” map, i.e., continuous on . except at a finite number of distinct points ., we have .Next, we turn to the geometric interpretation of . as a “minimal length” required to “connect the singularities.”
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1421-1750 . The “Complements and Open Problems” sections provide short introductions to various subsequent developments or related topics, and suggest new.directions of research.  Historical perspectives and a comprehens978-1-0716-1512-6Series ISSN 1421-1750 Series E-ISSN 2374-0280
发表于 2025-3-23 08:39:01 | 显示全部楼层
Book 2021 a detailed overview, followed by the most significant results, and rather complete proofs. The “Complements and Open Problems” sections provide short introductions to various subsequent developments or related topics, and suggest new.directions of research.  Historical perspectives and a comprehens
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