HYPOELLIPTIC DIFFERENTIAL OPERATORS AND NILPOTENT GROUPS

[1] ABRAHAMS R, 1967, TRANSVERSAL MAPPINGS

[2] [Anonymous], LECONS REPRESENTATIO

[3] NONANALYTIC-HYPOELLIPTICITY FOR SOME DEGENERATE ELLIPTIC OPERATORS [J]. BULLETIN OF THE AMERICAN MATHEMATICAL SOCIETY, 1972, 78 (03) : 483 - &

[4] BOUTET L, 1974, INVENT MATH, V24, P1

[5] Calderon A.-P., 1961, P S PURE MATH, V4, P33

[6] Calderon AP., 1964, STUDIA MATH, V24, P113, DOI 10.4064/sm-24-2-113-190

[7] Folland G.B., 1972, ANN MATH STUD, V75

[8] FOLLAND GB, 1975, ARK MAT, V13, P161, DOI 10.1007/BF02386204

[9] ESTIMATES FOR DELTA-BAR B COMPLEX AND ANALYSIS ON HEISENBERG GROUP [J]. COMMUNICATIONS ON PURE AND APPLIED MATHEMATICS, 1974, 27 (04) : 429 - 522

[10] GREINER P, 1975, RECONTRE ANAL COMPLE, P49

[1] ABRAHAMS R, 1967, TRANSVERSAL MAPPINGS

[2] [Anonymous], LECONS REPRESENTATIO

[3] NONANALYTIC-HYPOELLIPTICITY FOR SOME DEGENERATE ELLIPTIC OPERATORS [J]. BULLETIN OF THE AMERICAN MATHEMATICAL SOCIETY, 1972, 78 (03) : 483 - &

[4] BOUTET L, 1974, INVENT MATH, V24, P1

[5] Calderon A.-P., 1961, P S PURE MATH, V4, P33

[6] Calderon AP., 1964, STUDIA MATH, V24, P113, DOI 10.4064/sm-24-2-113-190

[7] Folland G.B., 1972, ANN MATH STUD, V75

[8] FOLLAND GB, 1975, ARK MAT, V13, P161, DOI 10.1007/BF02386204

[9] ESTIMATES FOR DELTA-BAR B COMPLEX AND ANALYSIS ON HEISENBERG GROUP [J]. COMMUNICATIONS ON PURE AND APPLIED MATHEMATICS, 1974, 27 (04) : 429 - 522

[10] GREINER P, 1975, RECONTRE ANAL COMPLE, P49