Abstract:
We study numerical approximations to solutions of a system of two nonlinear diffusion equations in a bounded interval, coupled at the boundary in a nonlinear way. In certain cases the system develops a blow-up singularity in finite time. Fixed mesh methods are not well suited to approximate the problem near the singularity. As an alternative to reproduce the behaviour of the continuous solution, we present an adaptive in space procedure. The scheme recovers the conditions for blow-up and non-simultaneous blow-up. It also gives the correct non-simultaneous blow-up rate and set. Moreover, the numerical simultaneous blow-up rates coincide with the continuous ones in the cases when the latter are known. Finally, we present numerical experiments that illustrate the behaviour of the adaptive method. © Springer-Verlag 2005.
Registro:
Documento: |
Artículo
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Título: | An adaptive numerical method to handle blow-up in a parabolic system |
Autor: | Brändle, C.; Quirós, F.; Rossi, J.D. |
Filiación: | Departamento de Matemáticas, U. Autónoma de Madrid, 28049 Madrid, Spain IMAFF, CSIC, c/ Serrano 123, 28006, Madrid, Spain Departamento de Matemática, U. de Buenos Aires, Ciudad Universitaria Pab. I, (1428) Buenos Aires, Argentina
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Año: | 2005
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Volumen: | 102
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Número: | 1
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Página de inicio: | 39
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Página de fin: | 59
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DOI: |
http://dx.doi.org/10.1007/s00211-005-0638-x |
Título revista: | Numerische Mathematik
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Título revista abreviado: | Numer. Math.
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ISSN: | 0029599X
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0029599X_v102_n1_p39_Brandle |
Referencias:
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Citas:
---------- APA ----------
Brändle, C., Quirós, F. & Rossi, J.D.
(2005)
. An adaptive numerical method to handle blow-up in a parabolic system. Numerische Mathematik, 102(1), 39-59.
http://dx.doi.org/10.1007/s00211-005-0638-x---------- CHICAGO ----------
Brändle, C., Quirós, F., Rossi, J.D.
"An adaptive numerical method to handle blow-up in a parabolic system"
. Numerische Mathematik 102, no. 1
(2005) : 39-59.
http://dx.doi.org/10.1007/s00211-005-0638-x---------- MLA ----------
Brändle, C., Quirós, F., Rossi, J.D.
"An adaptive numerical method to handle blow-up in a parabolic system"
. Numerische Mathematik, vol. 102, no. 1, 2005, pp. 39-59.
http://dx.doi.org/10.1007/s00211-005-0638-x---------- VANCOUVER ----------
Brändle, C., Quirós, F., Rossi, J.D. An adaptive numerical method to handle blow-up in a parabolic system. Numer. Math. 2005;102(1):39-59.
http://dx.doi.org/10.1007/s00211-005-0638-x