Three-scale convergence for processes in heterogeneous media

In this article, we propose a new notion of multiscale convergence, called ‘three-scale’, which aims to give a topological framework in which to assess complex processes occurring at three different scales or levels within a heterogeneous medium. This generalizes and extends the notion of two-scale...

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Hauptverfasser: Trucu, Dumitru (VerfasserIn) , Chaplain, Mark (VerfasserIn) , Marciniak-Czochra, Anna (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 2012
In: Applicable analysis
Year: 2012, Jahrgang: 91, Heft: 7, Pages: 1351-1373
ISSN:1563-504X
DOI:10.1080/00036811.2011.569498
Online-Zugang:Verlag, Volltext: http://dx.doi.org/10.1080/00036811.2011.569498
Verlag, Volltext: http://www.tandfonline.com/doi/full/10.1080/00036811.2011.569498?scroll=top&needAccess=true
Volltext
Verfasserangaben:D. Trucu, M.A.J. Chaplain, A. Marciniak-Czochra
Beschreibung
Zusammenfassung:In this article, we propose a new notion of multiscale convergence, called ‘three-scale’, which aims to give a topological framework in which to assess complex processes occurring at three different scales or levels within a heterogeneous medium. This generalizes and extends the notion of two-scale convergence, a well-established concept that is now commonly used for obtaining an averaged, asymptotic value (homogenization) of processes that exist on two different spatial scales. The well-posedness of this new concept is justified via a compactness theorem which ensures that all bounded sequences in L 2(Ω) are relative compact with respect to the three-scale convergence. This is taken further by giving a boundedness characterization of three-scale convergent sequences and is then continued with the introduction of the notion of ‘strong three-scale convergence’ whose well-posedness is also discussed. Finally, the three-scale convergence of the gradients is established.
Beschreibung:Published online: 15 Apr 2011
Gesehen am 16.08.2017
Beschreibung:Online Resource
ISSN:1563-504X
DOI:10.1080/00036811.2011.569498