Pour des corrélations de la forme (0,2) nous considérons un cas critique et démontrons des bornes supérieures de décroissance polynomiale en termes de la solution fondamentale d’un opérateur elliptique. Ceci est obtenu grâce à des améliorations d’un principe du maximum. Nous formulons aussi un principe du maximum général et nous donnons deux applications.
For correlations of the form (0.2) we consider a critical case and prove power decay upper bounds in terms of the fundamental solution of a certain elliptic operator. This is achieved by improving the use of a maximum principle. We also formulate a general maximum principle and give two applications.
@article{AIF_1994__44_2_601_0, author = {Sj\"ostrand, Johannes}, title = {Ferromagnetic integrals, correlations and maximum principles}, journal = {Annales de l'Institut Fourier}, volume = {44}, year = {1994}, pages = {601-628}, doi = {10.5802/aif.1411}, mrnumber = {95h:81015}, zbl = {0831.35031}, language = {en}, url = {http://dml.mathdoc.fr/item/AIF_1994__44_2_601_0} }
Sjöstrand, Johannes. Ferromagnetic integrals, correlations and maximum principles. Annales de l'Institut Fourier, Tome 44 (1994) pp. 601-628. doi : 10.5802/aif.1411. http://gdmltest.u-ga.fr/item/AIF_1994__44_2_601_0/
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