A fundamental solution for a subelliptic operator. (English) Zbl 0256.35020


35H10 Hypoelliptic equations
35C05 Solutions to PDEs in closed form
35B45 A priori estimates in context of PDEs
43A80 Analysis on other specific Lie groups
42B25 Maximal functions, Littlewood-Paley theory
Full Text: DOI


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[6] E. M. Stein, Some problems in harmonic analysis suggested by symmetric spaces and semi-simple groups, Actes du Congrès International des Mathématiciens (Nice, 1970) Gauthier-Villars, Paris, 1971, pp. 173 – 189.
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