Étant donnés un compact du plan complexe, et une mesure non nulle sur , on étudie , l’adhérence dans , pour la topologie , de l’algèbre des fractions rationnelles d’une variable complexe, à pôles hors de . Le résultat principal obtenu est qu’il existe un sous-ensemble de , éventuellement vide, mesurable pour la mesure de Lebesgue plane, et une mesure , éventuellement nulle, absolument continue par rapport à la mesure , tels que : soit isométriquement isomorphe à , où désigne la restriction à de la mesure de Lebesgue plane.
Let be a compact subset of the complex plane, and a measure on ; we study , the weak star closure in , of the algebra of rational functions with poles off . The main result is the following: there exists a subset of , possibly empty, measurable with respect to the Lebesgue measure, and a measure , possibly equal to zero, absolutely continuous with respect to the measure , such that: is isometrically isomorphic to , with the restriction to of the Lebesgue measure.
@article{AIF_1974__24_4_93_0,
author = {Chaumat, Jacques},
title = {Adh\'erence faible \'etoile d'alg\`ebres de fractions rationnelles},
journal = {Annales de l'Institut Fourier},
pages = {93--120},
publisher = {Institut Fourier},
address = {Grenoble},
volume = {24},
number = {4},
year = {1974},
doi = {10.5802/aif.533},
zbl = {0287.46065},
mrnumber = {53 #14141},
language = {fr},
url = {https://aif.centre-mersenne.org/articles/10.5802/aif.533/}
}
TY - JOUR AU - Chaumat, Jacques TI - Adhérence faible étoile d'algèbres de fractions rationnelles JO - Annales de l'Institut Fourier PY - 1974 SP - 93 EP - 120 VL - 24 IS - 4 PB - Institut Fourier PP - Grenoble UR - https://aif.centre-mersenne.org/articles/10.5802/aif.533/ DO - 10.5802/aif.533 LA - fr ID - AIF_1974__24_4_93_0 ER -
%0 Journal Article %A Chaumat, Jacques %T Adhérence faible étoile d'algèbres de fractions rationnelles %J Annales de l'Institut Fourier %D 1974 %P 93-120 %V 24 %N 4 %I Institut Fourier %C Grenoble %U https://aif.centre-mersenne.org/articles/10.5802/aif.533/ %R 10.5802/aif.533 %G fr %F AIF_1974__24_4_93_0
Chaumat, Jacques. Adhérence faible étoile d'algèbres de fractions rationnelles. Annales de l'Institut Fourier, Tome 24 (1974) no. 4, pp. 93-120. doi: 10.5802/aif.533
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