Some nonanalytic-hypoelliptic sums of squares of vector fields
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Publication:3992031
DOI10.1090/S0273-0979-1992-00258-6zbMath0767.35003arXivmath/9201260MaRDI QIDQ3992031
Publication date: 28 June 1992
Published in: Bulletin of the American Mathematical Society (Search for Journal in Brave)
Full work available at URL: https://arxiv.org/abs/math/9201260
elliptic operatorshypoelliptic operatorssubelliptic operatorssecond-order partial differential operators
Numerical computation of solutions to systems of equations (65H10) Smoothness and regularity of solutions to PDEs (35B65) General theory of partial differential operators (47F05) Analyticity in context of PDEs (35A20)
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