We consider some boundary value problems in self-similar ramified domains, with Laplace and Helmholtz equations. We discuss transparent boundary conditions. These conditions permit computing the restriction of the solutions to domains obtained by stopping the geometric construction after a finite number of steps.
On considère une classe de problèmes aux limites dans des domaines autosimilaires ramifiés, avec des équations de Laplace ou d'Helmholtz. On s'intéresse à l'obtention de conditions aux limites transparentes, permettant le calcul de la solution dans un domaine obtenu en arrêtant la construction après un nombre fini d'étapes.
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@article{CRMATH_2006__342_8_605_0, author = {Achdou, Yves and Sabot, Christophe and Tchou, Nicoletta}, title = {Transparent boundary conditions for a class of boundary value problems in some ramified domains with a fractal boundary}, journal = {Comptes Rendus. Math\'ematique}, pages = {605--610}, publisher = {Elsevier}, volume = {342}, number = {8}, year = {2006}, doi = {10.1016/j.crma.2006.02.024}, language = {en}, url = {http://www.numdam.org/articles/10.1016/j.crma.2006.02.024/} }
TY - JOUR AU - Achdou, Yves AU - Sabot, Christophe AU - Tchou, Nicoletta TI - Transparent boundary conditions for a class of boundary value problems in some ramified domains with a fractal boundary JO - Comptes Rendus. Mathématique PY - 2006 SP - 605 EP - 610 VL - 342 IS - 8 PB - Elsevier UR - http://www.numdam.org/articles/10.1016/j.crma.2006.02.024/ DO - 10.1016/j.crma.2006.02.024 LA - en ID - CRMATH_2006__342_8_605_0 ER -
%0 Journal Article %A Achdou, Yves %A Sabot, Christophe %A Tchou, Nicoletta %T Transparent boundary conditions for a class of boundary value problems in some ramified domains with a fractal boundary %J Comptes Rendus. Mathématique %D 2006 %P 605-610 %V 342 %N 8 %I Elsevier %U http://www.numdam.org/articles/10.1016/j.crma.2006.02.024/ %R 10.1016/j.crma.2006.02.024 %G en %F CRMATH_2006__342_8_605_0
Achdou, Yves; Sabot, Christophe; Tchou, Nicoletta. Transparent boundary conditions for a class of boundary value problems in some ramified domains with a fractal boundary. Comptes Rendus. Mathématique, Volume 342 (2006) no. 8, pp. 605-610. doi : 10.1016/j.crma.2006.02.024. http://www.numdam.org/articles/10.1016/j.crma.2006.02.024/
[1] Y. Achdou, C. Sabot, N. Tchou, Diffusion and propagation problems in some ramified domains with a fractal boundary, submitted for publication
[2] Y. Achdou, C. Sabot, and N. Tchou, Transparent boundary conditions for Helmholtz equation in some ramified domains with a fractal boundary, submitted for publication
[3] M. Felici, Physique du transport diffusif de l'oxygène dans le poumon humain, PhD thesis, École Polytechnique, 2003
[4] Function spaces on subsets of , Math. Rep., Volume 2 (1984) no. 1, pp. 1-221
[5] Exact nonreflecting boundary conditions, J. Comput. Phys., Volume 82 (1989) no. 1, pp. 172-192
[6] A transmission problem with a fractal interface, Z. Anal. Anwend., Volume 21 (2002) no. 1, pp. 113-133
[7] Sobolev Spaces, Springer Ser. in Soviet Math., Springer-Verlag, Berlin, 1985 (Translated from the Russian by T.O. Shaposhnikova)
[8] Variational problems with fractal layers, Rend. Accad. Naz. Sci. XL Mem. Mat. Appl. (5), Volume 27 (2003), pp. 237-251
[9] C. Sabot, Electrical networks, symplectic reductions, and application to the renormalization map of self-similar lattices, Proc. Sympos. Pure Math., “A Mandelbrot Jubilee”, in press
[10] Spectral properties of self-similar lattices and iteration of rational maps, Mém. Soc. Math. France (N.S.), Volume 92 (2003), pp. 1-104
Cited by Sources:
⁎ The research of Yves Achdou and Nicoletta Tchou was partially supported by the ACINIM “LePoumonVousDisJe”. Le travail de Yves Achdou et de Nicoletta Tchou a été partiellement supporté par l'ACINIM “LePoumonVousDisJe”.