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arXiv 2203.00630math.FAmath.AP
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Hilbert复形的迹

Traces for Hilbert Complexes

Ralf Hiptmair, Dirk Pauly, Erick Schulz

摘要:

研究了抽象Hilbert复形的迹算子和迹空间的新概念。我们引入迹空间作为商空间/零化子。我们刻画了相关迹算子的核和像,并讨论了迹空间之间的对偶关系。我们阐述了有界Lipschitz域上的Euclidean de Rham复形的经典边界迹的许多性质都植根于Hilbert复形的一般结构。我们到达抽象的跟踪希尔伯特复形,可以制定使用商空间/零化子。我们表明,如果一个希尔伯特复形承认稳定的“正规分解”与紧提升算子,那么相关的跟踪希尔伯特复形是Fredholm。在整个过程中,我们将讨论在三维欧几里得空间中的德拉姆复形的具体情况下抽象概念和结果的体现。

英文摘要:

We study a new notion of trace operators and trace spaces for abstract Hilbert complexes. We introduce trace spaces as quotient spaces/annihilators. We characterize the kernels and images of the related trace operators and discuss duality relationships between trace spaces. We elaborate that many properties of the classical boundary traces associated with the Euclidean de Rham complex on bounded Lipschitz domains are rooted in the general structure of Hilbert complexes. We arrive at abstract trace Hilbert complexes that can be formulated using quotient spaces/annihilators. We show that, if a Hilbert complex admits stable "regular decompositions" with compact lifting operators, then the associated trace Hilbert complex is Fredholm. Incarnations of abstract concepts and results in the concrete case of the de Rham complex in three-dimensional Euclidean space will be discussed throughout.

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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