FUNDAMENTAL SOLUTION FOR A NON-ELLIPTIC PARTIAL-DIFFERENTIAL OPERATOR

[1] GREINER PC, 1976, SEMINAR SEVERAL COMP

[2] GREINER PC, 1977, MATH NOTES SERIES, V19

[3] HYPOELLIPTIC 2ND ORDER DIFFERENTIAL EQUATIONS [J]. ACTA MATHEMATICA UPPSALA, 1967, 119 (3-4): : 147 - &

[4] KOHN JJ, 1969, GLOBAL ANAL PRINCETO, V29, P295

[5] HYPOELLIPTIC DIFFERENTIAL OPERATORS AND NILPOTENT GROUPS [J]. ACTA MATHEMATICA, 1976, 137 (3-4) : 247 - 320

[1] GREINER PC, 1976, SEMINAR SEVERAL COMP

[2] GREINER PC, 1977, MATH NOTES SERIES, V19

[3] HYPOELLIPTIC 2ND ORDER DIFFERENTIAL EQUATIONS [J]. ACTA MATHEMATICA UPPSALA, 1967, 119 (3-4): : 147 - &

[4] KOHN JJ, 1969, GLOBAL ANAL PRINCETO, V29, P295

[5] HYPOELLIPTIC DIFFERENTIAL OPERATORS AND NILPOTENT GROUPS [J]. ACTA MATHEMATICA, 1976, 137 (3-4) : 247 - 320