Geodesic
Fundamental solutions and geometry of the sum of squares of vector fields.
Inventiones mathematicae, Tome 78 (1984), pp. 143-160.

Voir la notice de l'article provenant de la source European Digital Mathematics Library

Mots-clés : hypoelliptic operator, Green kernel, vector fields 
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     author = {Antonio S\'anchez-Calle},
     title = {Fundamental solutions and geometry of the sum of squares of vector fields.},
     journal = {Inventiones mathematicae},
     pages = {143--160},
     publisher = {mathdoc},
     volume = {78},
     year = {1984},
     zbl = {0582.58004},
     url = {http://geodesic.mathdoc.fr/item/IM_1984__78_143171/}
}
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Antonio Sánchez-Calle. Fundamental solutions and geometry of the sum of squares of vector fields.. Inventiones mathematicae, Tome 78 (1984), pp. 143-160. http://geodesic.mathdoc.fr/item/IM_1984__78_143171/