Voir la notice de l'article provenant de la source Numdam
Classical Gårding inequalities such as those of Hörmander, Hörmander-Melin or Fefferman-Phong are proved by pseudo-differential methods which do not allow to keep a good control on the supports of the functions under study nor on the smoothness of the coefficients of the operator. In this paper, we show by very simple calculations that in certain special situations, the results that can be obtained directly are much better than those expected thanks to the general theory.
@article{ASNSP_2002_5_1_1_169_0,
author = {Saint Raymond, Xavier},
title = {Remarks on {G\r{a}rding} inequalities for differential operators},
journal = {Annali della Scuola Normale Superiore di Pisa - Classe di Scienze},
pages = {169--185},
publisher = {Scuola normale superiore},
volume = {Ser. 5, 1},
number = {1},
year = {2002},
mrnumber = {1994806},
zbl = {1050.35162},
language = {en},
url = {http://geodesic.mathdoc.fr/item/ASNSP_2002_5_1_1_169_0/}
}
TY - JOUR AU - Saint Raymond, Xavier TI - Remarks on Gårding inequalities for differential operators JO - Annali della Scuola Normale Superiore di Pisa - Classe di Scienze PY - 2002 SP - 169 EP - 185 VL - 1 IS - 1 PB - Scuola normale superiore UR - http://geodesic.mathdoc.fr/item/ASNSP_2002_5_1_1_169_0/ LA - en ID - ASNSP_2002_5_1_1_169_0 ER -
%0 Journal Article %A Saint Raymond, Xavier %T Remarks on Gårding inequalities for differential operators %J Annali della Scuola Normale Superiore di Pisa - Classe di Scienze %D 2002 %P 169-185 %V 1 %N 1 %I Scuola normale superiore %U http://geodesic.mathdoc.fr/item/ASNSP_2002_5_1_1_169_0/ %G en %F ASNSP_2002_5_1_1_169_0
Saint Raymond, Xavier. Remarks on Gårding inequalities for differential operators. Annali della Scuola Normale Superiore di Pisa - Classe di Scienze, Série 5, Tome 1 (2002) no. 1, pp. 169-185. http://geodesic.mathdoc.fr/item/ASNSP_2002_5_1_1_169_0/