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Hypoellipticity theorems and conditional laws. (English) Zbl 0524.35028


MSC:

35H10 Hypoelliptic equations
35B65 Smoothness and regularity of solutions to PDEs
35B45 A priori estimates in context of PDEs
46E35 Sobolev spaces and other spaces of “smooth” functions, embedding theorems, trace theorems
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