Abstract:
This paper deals with the integral version of the Dirichlet homogeneous fractional Laplace equation. For this problem weighted and fractional Sobolev a priori estimates are provided in terms of the Holder regularity of the data. By relying on these results, optimal order of convergence for the standard linear finite element method is proved for quasi-uniform as well as graded meshes. Some numerical examples are given showing results in agreement with the theoretical predictions. © by SIAM 2017.
Registro:
Documento: |
Artículo
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Título: | A fractional Laplace equation: Regularity of solutions and finite element approximations |
Autor: | Acosta, G.; Borthagaray, J.P. |
Filiación: | IMAS - CONICET, Departamento de Matematica, Universidad de Buenos Aires, Buenos Aires, 1428, Argentina
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Palabras clave: | Finite elements; Fractional Laplacian; Graded meshes; Weighted fractional norms; Integrodifferential equations; Laplace equation; Laplace transforms; Nonlinear equations; Poisson equation; A-priori estimates; Finite element approximations; Fractional Laplacian; Graded meshes; Linear finite elements; Optimal order of convergence; Regularity of solutions; Weighted fractional norms; Finite element method |
Año: | 2017
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Volumen: | 55
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Número: | 2
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Página de inicio: | 472
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Página de fin: | 495
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DOI: |
http://dx.doi.org/10.1137/15M1033952 |
Título revista: | SIAM Journal on Numerical Analysis
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Título revista abreviado: | SIAM J Numer Anal
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ISSN: | 00361429
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CODEN: | SJNAA
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00361429_v55_n2_p472_Acosta |
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Citas:
---------- APA ----------
Acosta, G. & Borthagaray, J.P.
(2017)
. A fractional Laplace equation: Regularity of solutions and finite element approximations. SIAM Journal on Numerical Analysis, 55(2), 472-495.
http://dx.doi.org/10.1137/15M1033952---------- CHICAGO ----------
Acosta, G., Borthagaray, J.P.
"A fractional Laplace equation: Regularity of solutions and finite element approximations"
. SIAM Journal on Numerical Analysis 55, no. 2
(2017) : 472-495.
http://dx.doi.org/10.1137/15M1033952---------- MLA ----------
Acosta, G., Borthagaray, J.P.
"A fractional Laplace equation: Regularity of solutions and finite element approximations"
. SIAM Journal on Numerical Analysis, vol. 55, no. 2, 2017, pp. 472-495.
http://dx.doi.org/10.1137/15M1033952---------- VANCOUVER ----------
Acosta, G., Borthagaray, J.P. A fractional Laplace equation: Regularity of solutions and finite element approximations. SIAM J Numer Anal. 2017;55(2):472-495.
http://dx.doi.org/10.1137/15M1033952