On étudie les configurations topologiques possibles d’ensembles nodaux, en particulier, le nombre de leurs composantes, pour les harmoniques sphériques sur . Nous construisons aussi une solution de l’équation dans qui possède seulement deux domaines nodaux. Cette équation est considérée dans l’étude des fonctions propres à haute énergie.
We discuss possible topological configurations of nodal sets, in particular the number of their components, for spherical harmonics on . We also construct a solution of the equation in that has only two nodal domains. This equation arises in the study of high energy eigenfunctions.
Keywords: Laplacian, nodal sets, nodal domains, spherical harmonic, topological configuration
Mot clés : Laplacien, ensemble nodaux, domaines nodaux, harmonique sphérique, configuration topologique
Eremenko, Alexandre 1 ; Jakobson, Dmitry 2 ; Nadirashvili, Nikolai 3
@article{AIF_2007__57_7_2345_0, author = {Eremenko, Alexandre and Jakobson, Dmitry and Nadirashvili, Nikolai}, title = {On nodal sets and nodal domains on $\mathbf{S^2}$ and ${\mathbb{R}}^{\mathbf{2}}$}, journal = {Annales de l'Institut Fourier}, pages = {2345--2360}, publisher = {Association des Annales de l{\textquoteright}institut Fourier}, volume = {57}, number = {7}, year = {2007}, doi = {10.5802/aif.2335}, mrnumber = {2394544}, language = {en}, url = {https://aif.centre-mersenne.org/articles/10.5802/aif.2335/} }
TY - JOUR AU - Eremenko, Alexandre AU - Jakobson, Dmitry AU - Nadirashvili, Nikolai TI - On nodal sets and nodal domains on $\mathbf{S^2}$ and ${\mathbb{R}}^{\mathbf{2}}$ JO - Annales de l'Institut Fourier PY - 2007 SP - 2345 EP - 2360 VL - 57 IS - 7 PB - Association des Annales de l’institut Fourier UR - https://aif.centre-mersenne.org/articles/10.5802/aif.2335/ DO - 10.5802/aif.2335 LA - en ID - AIF_2007__57_7_2345_0 ER -
%0 Journal Article %A Eremenko, Alexandre %A Jakobson, Dmitry %A Nadirashvili, Nikolai %T On nodal sets and nodal domains on $\mathbf{S^2}$ and ${\mathbb{R}}^{\mathbf{2}}$ %J Annales de l'Institut Fourier %D 2007 %P 2345-2360 %V 57 %N 7 %I Association des Annales de l’institut Fourier %U https://aif.centre-mersenne.org/articles/10.5802/aif.2335/ %R 10.5802/aif.2335 %G en %F AIF_2007__57_7_2345_0
Eremenko, Alexandre; Jakobson, Dmitry; Nadirashvili, Nikolai. On nodal sets and nodal domains on $\mathbf{S^2}$ and ${\mathbb{R}}^{\mathbf{2}}$. Annales de l'Institut Fourier, Tome 57 (2007) no. 7, pp. 2345-2360. doi : 10.5802/aif.2335. https://aif.centre-mersenne.org/articles/10.5802/aif.2335/
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