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Numerical quadrature for singular integrals over self-similar measures on fractal sets

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Authors : Hewett, David (Author of the conference)
CIRM (Publisher )

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Abstract : We consider the numerical evaluation of integrals with respect to self-similar measures supported on fractal sets, with a weakly singular integrand of loga-rithmic or algebraic type. We show that, in many cases, the self-similarity of the measures, combined with the homogeneity properties of the integrand, can be exploited to express the singular integral exactly in terms of regular inte-grals, which can be readily approximated numerically using e.g. a composite barycentre rule. Our approach applies to measures supported on many well-known fractals including Cantor sets and dusts, the Sierpinski triangle, carpet and tetrahedron, the Vicsek fractal, and the Koch snowflake. We illustrate our approach via numerical examples computed using our IFSIntegrals.jl Julia code. This is joint work with Andrew Gibbs, Botond Major and Andrea Moiola.

MSC Codes :
28A80 - Fractals

    Information on the Video

    Film maker : Récanzone, Luca
    Language : English
    Available date : 08/04/2024
    Conference Date : 19/03/2024
    Subseries : Research talks
    arXiv category : Numerical Analysis
    Mathematical Area(s) : Numerical Analysis & Scientific Computing
    Format : MP4 (.mp4) - HD
    Video Time : 00:37:22
    Targeted Audience : Researchers ; Graduate Students ; Doctoral Students, Post-Doctoral Students
    Download : https://videos.cirm-math.fr/2024-03-19_Hewett_2.mp4

Information on the Event

Event Title : Analysis on fractals and networks, and applications / Analyse sur les fractals et les réseaux, et applications
Event Organizers : Hinz, Michael ; Lancia, Maria Rosaria ; Rozanova-Pierrat, Anna
Dates : 18/03/2024 - 22/03/2024
Event Year : 2024
Event URL : https://conferences.cirm-math.fr/2950.html

Citation Data

DOI : 10.24350/CIRM.V.20151803
Cite this video as: Hewett, David (2024). Numerical quadrature for singular integrals over self-similar measures on fractal sets. CIRM. Audiovisual resource. doi:10.24350/CIRM.V.20151803
URI : http://dx.doi.org/10.24350/CIRM.V.20151803

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