\(L^ 2\)-hypoellipticity for a class of operators of mixed type

zbMath0664.35060MaRDI QIDQ1114864

Jia-Xing Hong

Publication date: 1988

Published in: Chinese Annals of Mathematics. Series B (Search for Journal in Brave)

zbMATH Keywords

operators of mixed type\(L^ 2\)-hypoellipticitydegenerated curves

Mathematics Subject Classification ID

Numerical computation of solutions to systems of equations (65H10) Partial differential equations of mixed type and mixed-type systems of partial differential equations (35M99)

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