Nonlinear eigenvalues and analytic-hypoellipticity
DOI10.1090/MEMO/0636zbMath0913.35100OpenAlexW1968528190MaRDI QIDQ4214098
Publication date: 31 May 1999
Published in: Memoirs of the American Mathematical Society (Search for Journal in Brave)
Full work available at URL: https://doi.org/10.1090/memo/0636
sums of squares of vector fieldsHörmander-type operatorsfailure of analytic-hypoellipticity of two partial differential operator
Numerical computation of solutions to systems of equations (65H10) Smoothness and regularity of solutions to PDEs (35B65) Asymptotic distributions of eigenvalues in context of PDEs (35P20) Singular perturbations, turning point theory, WKB methods for ordinary differential equations (34E20) Research exposition (monographs, survey articles) pertaining to partial differential equations (35-02)
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