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On some concepts of convergence and their connections

Tatiana Danielsson, Liselott‎ Flodén, Anders Holmbom, Pernilla Johnsen, ‎Marianne Olsson Lindberg and Persson, Jens

Published
Source
OpenAlex
DOI
10.48550/arxiv.2610.04478
Original
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Topics
Mathematical PhysicsProbabilityStatistics Theory

Abstract

The notions of classical two-scale convergence and the periodic unfolding method, which both rely on an additional scale for the representation of periodic micro-oscillations, are in this paper traced back to the wider concept of general two-scale convergence. Moreover, a comparison is made between very weak two-scale convergence and periodic unfolding with respect to sequences bounded in Sobolev spaces, amplified by the scale of the micro-oscillations. It turns out that, for amplified sequences, these approaches are not equivalent in an immediate sense. The paper both serves as a literature overview, with examples and illustrations of the concepts of convergence, and contains new results.

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