Local energy estimates for the fractional Laplacian.

Borthagaray, Juan Pablo - Leykekhman, Dmitriy - Nochetto, Ricardo H.

Resumen:

The integral fractional Laplacian of order s∈(0,1) is a nonlocal operator. It is known that solutions to the Dirichlet problem involving such an operator exhibit an algebraic boundary singularity regardless of the domain regularity. This, in turn, deteriorates the global regularity of solutions and as a result the global convergence rate of the numerical solutions. For finite element discretizations, we derive local error estimates in the Hs-seminorm and show optimal convergence rates in the interior of the domain by only assuming meshes to be shape-regular. These estimates quantify the fact that the reduced approximation error is concentrated near the boundary of the domain. We illustrate our theoretical results with several numerical examples.

Detalles Bibliográficos
2022
Juan Pablo Borthagaray ha sido financiado en parte por la beca DMS-1411808 de la NSF y la beca de viaje de AMS-Simons.
Finite elements
Error estimates
Interior error estimates
Fractional Laplacian
Inglés
Universidad de la República
COLIBRI
https://hdl.handle.net/20.500.12008/47829
Acceso abierto
Licencia Creative Commons Atribución - No Comercial - Sin Derivadas (CC - By-NC-ND 4.0)
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author Borthagaray, Juan Pablo
author2 Leykekhman, Dmitriy
Nochetto, Ricardo H.
author2_role author
author
author_facet Borthagaray, Juan Pablo
Leykekhman, Dmitriy
Nochetto, Ricardo H.
author_role author
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dc.contributor.filiacion.none.fl_str_mv Borthagaray Juan Pablo, Universidad de la República (Uruguay). Facultad de Ingeniería.
Leykekhman Dmitriy, University of Connecticut, USA
Nochetto Ricardo H., University of Maryland, USA
dc.creator.none.fl_str_mv Borthagaray, Juan Pablo
Leykekhman, Dmitriy
Nochetto, Ricardo H.
dc.date.accessioned.none.fl_str_mv 2024-12-30T15:52:35Z
dc.date.available.none.fl_str_mv 2024-12-30T15:52:35Z
dc.date.issued.none.fl_str_mv 2022
dc.description.abstract.none.fl_txt_mv The integral fractional Laplacian of order s∈(0,1) is a nonlocal operator. It is known that solutions to the Dirichlet problem involving such an operator exhibit an algebraic boundary singularity regardless of the domain regularity. This, in turn, deteriorates the global regularity of solutions and as a result the global convergence rate of the numerical solutions. For finite element discretizations, we derive local error estimates in the Hs-seminorm and show optimal convergence rates in the interior of the domain by only assuming meshes to be shape-regular. These estimates quantify the fact that the reduced approximation error is concentrated near the boundary of the domain. We illustrate our theoretical results with several numerical examples.
dc.description.es.fl_txt_mv También publicado en SIAM Journal on Numerical Analysis, vol. 59, no. 4, 2021, pp. 1918-1947.
dc.description.sponsorship.none.fl_txt_mv Juan Pablo Borthagaray ha sido financiado en parte por la beca DMS-1411808 de la NSF y la beca de viaje de AMS-Simons.
dc.format.extent.es.fl_str_mv 31 p.
dc.format.mimetype.es.fl_str_mv application/pdf
dc.identifier.citation.es.fl_str_mv Borthagaray, J., Leykekhman, D. y Nochetto, R. Local energy estimates for the fractional Laplacian. [Preprint]. Publicado en: Mathematics. Numerical Analysis (math.NA), 2022, pp. 1-31. arXiv:2005.03786v2.
dc.identifier.uri.none.fl_str_mv https://hdl.handle.net/20.500.12008/47829
dc.language.iso.none.fl_str_mv en
eng
dc.publisher.es.fl_str_mv arXiv
dc.relation.none.fl_str_mv Mathematics. Numerical Analysis (math.NA), arXiv:2005.03786v2, dec 2022, pp. 1-31.
dc.rights.license.none.fl_str_mv Licencia Creative Commons Atribución - No Comercial - Sin Derivadas (CC - By-NC-ND 4.0)
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
dc.source.none.fl_str_mv reponame:COLIBRI
instname:Universidad de la República
instacron:Universidad de la República
dc.subject.es.fl_str_mv Finite elements
Error estimates
Interior error estimates
Fractional Laplacian
dc.title.none.fl_str_mv Local energy estimates for the fractional Laplacian.
dc.type.es.fl_str_mv Preprint
dc.type.none.fl_str_mv info:eu-repo/semantics/preprint
dc.type.version.none.fl_str_mv info:eu-repo/semantics/submittedVersion
description También publicado en SIAM Journal on Numerical Analysis, vol. 59, no. 4, 2021, pp. 1918-1947.
eu_rights_str_mv openAccess
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identifier_str_mv Borthagaray, J., Leykekhman, D. y Nochetto, R. Local energy estimates for the fractional Laplacian. [Preprint]. Publicado en: Mathematics. Numerical Analysis (math.NA), 2022, pp. 1-31. arXiv:2005.03786v2.
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publishDate 2022
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repository.mail.fl_str_mv karina.camps@seciu.edu.uy
repository.name.fl_str_mv COLIBRI - Universidad de la República
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rights_invalid_str_mv Licencia Creative Commons Atribución - No Comercial - Sin Derivadas (CC - By-NC-ND 4.0)
spelling Borthagaray Juan Pablo, Universidad de la República (Uruguay). Facultad de Ingeniería.Leykekhman Dmitriy, University of Connecticut, USANochetto Ricardo H., University of Maryland, USA2024-12-30T15:52:35Z2024-12-30T15:52:35Z2022Borthagaray, J., Leykekhman, D. y Nochetto, R. Local energy estimates for the fractional Laplacian. [Preprint]. Publicado en: Mathematics. Numerical Analysis (math.NA), 2022, pp. 1-31. arXiv:2005.03786v2.https://hdl.handle.net/20.500.12008/47829También publicado en SIAM Journal on Numerical Analysis, vol. 59, no. 4, 2021, pp. 1918-1947.The integral fractional Laplacian of order s∈(0,1) is a nonlocal operator. It is known that solutions to the Dirichlet problem involving such an operator exhibit an algebraic boundary singularity regardless of the domain regularity. This, in turn, deteriorates the global regularity of solutions and as a result the global convergence rate of the numerical solutions. For finite element discretizations, we derive local error estimates in the Hs-seminorm and show optimal convergence rates in the interior of the domain by only assuming meshes to be shape-regular. These estimates quantify the fact that the reduced approximation error is concentrated near the boundary of the domain. We illustrate our theoretical results with several numerical examples.Submitted by Ribeiro Jorge (jribeiro@fing.edu.uy) on 2024-12-19T20:46:09Z No. of bitstreams: 2 license_rdf: 25790 bytes, checksum: 13adb202270a5f7cee03e795b33133c4 (MD5) BLN22.pdf: 703577 bytes, checksum: 1d513dbaf09d9957d9835307dd904346 (MD5)Approved for entry into archive by Machado Jimena (jmachado@fing.edu.uy) on 2024-12-30T14:54:43Z (GMT) No. of bitstreams: 2 license_rdf: 25790 bytes, checksum: 13adb202270a5f7cee03e795b33133c4 (MD5) BLN22.pdf: 703577 bytes, checksum: 1d513dbaf09d9957d9835307dd904346 (MD5)Made available in DSpace by Luna Fabiana (fabiana.luna@seciu.edu.uy) on 2024-12-30T15:52:35Z (GMT). No. of bitstreams: 2 license_rdf: 25790 bytes, checksum: 13adb202270a5f7cee03e795b33133c4 (MD5) BLN22.pdf: 703577 bytes, checksum: 1d513dbaf09d9957d9835307dd904346 (MD5) Previous issue date: 2022Juan Pablo Borthagaray ha sido financiado en parte por la beca DMS-1411808 de la NSF y la beca de viaje de AMS-Simons.31 p.application/pdfenengarXivMathematics. Numerical Analysis (math.NA), arXiv:2005.03786v2, dec 2022, pp. 1-31.Las obras depositadas en el Repositorio se rigen por la Ordenanza de los Derechos de la Propiedad Intelectual de la Universidad de la República.(Res. Nº 91 de C.D.C. de 8/III/1994 – D.O. 7/IV/1994) y por la Ordenanza del Repositorio Abierto de la Universidad de la República (Res. Nº 16 de C.D.C. de 07/10/2014)info:eu-repo/semantics/openAccessLicencia Creative Commons Atribución - No Comercial - Sin Derivadas (CC - By-NC-ND 4.0)Finite elementsError estimatesInterior error estimatesFractional LaplacianLocal energy estimates for the fractional Laplacian.Preprintinfo:eu-repo/semantics/preprintinfo:eu-repo/semantics/submittedVersionreponame:COLIBRIinstname:Universidad de la Repúblicainstacron:Universidad de la RepúblicaBorthagaray, Juan PabloLeykekhman, DmitriyNochetto, Ricardo H.LICENSElicense.txtlicense.txttext/plain; charset=utf-84267http://localhost:8080/xmlui/bitstream/20.500.12008/47829/5/license.txt6429389a7df7277b72b7924fdc7d47a9MD55CC-LICENSElicense_urllicense_urltext/plain; charset=utf-850http://localhost:8080/xmlui/bitstream/20.500.12008/47829/2/license_urla006180e3f5b2ad0b88185d14284c0e0MD52license_textlicense_texttext/html; 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- Universidad de la Repúblicafalse
spellingShingle Local energy estimates for the fractional Laplacian.
Borthagaray, Juan Pablo
Finite elements
Error estimates
Interior error estimates
Fractional Laplacian
status_str submittedVersion
title Local energy estimates for the fractional Laplacian.
title_full Local energy estimates for the fractional Laplacian.
title_fullStr Local energy estimates for the fractional Laplacian.
title_full_unstemmed Local energy estimates for the fractional Laplacian.
title_short Local energy estimates for the fractional Laplacian.
title_sort Local energy estimates for the fractional Laplacian.
topic Finite elements
Error estimates
Interior error estimates
Fractional Laplacian
url https://hdl.handle.net/20.500.12008/47829