Fundamental solutions and geometry of the sum of squares of vector fields.
Sánchez-Calle, Antonio
Inventiones mathematicae, Tome 75 (1984), p. 143-160 / Harvested from Göttinger Digitalisierungszentrum
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Publié le : 1984-01-01
EUDML-ID : urn:eudml:doc:143171 
@article{GDZPPN002100991,
     title = {Fundamental solutions and geometry of the sum of squares of vector fields.},
     journal = {Inventiones mathematicae},
     volume = {75},
     year = {1984},
     pages = {143-160},
     zbl = {0582.58004},
     url = {http://dml.mathdoc.fr/item/GDZPPN002100991}
}

Sánchez-Calle, Antonio. Fundamental solutions and geometry of the sum of squares of vector fields.. Inventiones mathematicae, Tome 75 (1984) pp. 143-160. http://gdmltest.u-ga.fr/item/GDZPPN002100991/