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On the convergence of the Escalator Boxcar Train
Umeå University.
Umeå University. (Mathematics/Applied Mathematics)ORCID iD: 0000-0002-5328-9560
Umeå University.
2013 (English)In: SIAM Journal on Numerical Analysis, ISSN 0036-1429, E-ISSN 1095-7170, Vol. 51, no 6, 3213-3231 p.Article in journal (Refereed) Published
Abstract [en]

The Escalator Boxcar Train (EBT) is a numerical method that is widely used in theoretical biology to investigate the dynamics of physiologically structured population models, i.e., models in which individuals differ by size or other physiological characteristics. The method was developed more than two decades ago, but has so far resisted attempts to give a formal proof of convergence. Using a modern framework of measure-valued solutions, we investigate the EBT method and show that the sequence of approximating solution measures generated by the EBT method converges weakly to the true solution measure under weak conditions on the growth rate, birth rate, and mortality rate. In rigorously establishing the convergence of the EBT method, our results pave the way for wider acceptance of the EBT method beyond theoretical biology and constitutes an important step towards integration with established numerical schemes.

Read More: http://epubs.siam.org/doi/abs/10.1137/120893215

Place, publisher, year, edition, pages
2013. Vol. 51, no 6, 3213-3231 p.
Keyword [en]
escalator boxcar train, convergence, physiologically structured population models, measure-valued solutions, transport equation, particle methods
National Category
Mathematics
Research subject
Mathematics/Applied Mathematics
Identifiers
URN: urn:nbn:se:mdh:diva-23042DOI: 10.1137/120893215ISI: 000328903500011Scopus ID: 2-s2.0-84892930775OAI: oai:DiVA.org:mdh-23042DiVA: diva2:668242
Available from: 2013-11-29 Created: 2013-11-29 Last updated: 2014-06-13Bibliographically approved

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CiteExportLink to record
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Cite
Citation style
  • apa
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  • de-DE
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  • nn-NB
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