Subalgebras to a Wiener type algebra of pseudo-differential operators
[Sous-algèbres de Wiener d'opérateurs pseudo différentiels]
Toft, Joachim
Annales de l'Institut Fourier, Tome 51 (2001), p. 1347-1383 / Harvested from Numdam

Nous étudions des propriétés générales de continuité pour une famille croissante d’espaces de Banach S w p de symboles pseudo-différentiels, où S w =S w a été introduit par J. Sjöstrand en 1993. Nous montrons que les opérateurs associés à ces symboles sont des opérateurs de Schatten-von Neumann d’ordre p sur L 2 . Nous prouvons aussi que Op (S w p ) Op (S w r ) Op (S w r ) et que S w p ·S w q S w r si 1/p+1/q=1/r. Si par contre 1/p+1/q=1+1/r, alors S w p w*S w q S w r . En modifiant la définition des espaces S w p , on obtient aussi des classes de symboles apparentés aux espaces S(m,g).

We study general continuity properties for an increasing family of Banach spaces S w p of classes for pseudo-differential symbols, where S w =S w was introduced by J. Sjöstrand in 1993. We prove that the operators in Op (S w p ) are Schatten-von Neumann operators of order p on L 2 . We prove also that Op (S w p ) Op (S w r ) Op (S w r ) and S w p ·S w q S w r , provided 1/p+1/q=1/r. If instead 1/p+1/q=1+1/r, then S w p w*S w q S w r . By modifying the definition of the S w p -spaces, one also obtains symbol classes related to the S(m,g) spaces.

Publié le : 2001-01-01
DOI : https://doi.org/10.5802/aif.1857
Classification:  35S05,  47B10,  47B33,  42B99,  28E99
Mots clés: opérateurs pseudo différentiels, calcul de Weyl, classes de Schatten-von Neumann, fonctions admissibles, inégalités de Hölder, inégalité de Young
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     author = {Toft, Joachim},
     title = {Subalgebras to a Wiener type algebra of pseudo-differential operators},
     journal = {Annales de l'Institut Fourier},
     volume = {51},
     year = {2001},
     pages = {1347-1383},
     doi = {10.5802/aif.1857},
     mrnumber = {1860668},
     zbl = {1027.35168},
     language = {en},
     url = {http://dml.mathdoc.fr/item/AIF_2001__51_5_1347_0}
}
Toft, Joachim. Subalgebras to a Wiener type algebra of pseudo-differential operators. Annales de l'Institut Fourier, Tome 51 (2001) pp. 1347-1383. doi : 10.5802/aif.1857. http://gdmltest.u-ga.fr/item/AIF_2001__51_5_1347_0/

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