scientific article; zbMATH DE number 3502006
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Publication:4084090
zbMath0321.35025MaRDI QIDQ4084090
Richard W. Beals, Charles L. Fefferman
Publication date: 1976
Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hypoelliptic equations (35H10) Partial differential equations of mixed type and mixed-type systems of partial differential equations (35M99)
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On the Solvability of Certain Degenerate Partial Differential Operators ⋮ Local Solvability of a Class of Degenerate Second Order Operators ⋮ Unnamed Item ⋮ On the local solvability of a class of degenerate second order operators with complex coefficients ⋮ On the Solvability of a Class of Second Order Degenerate Operators ⋮ Local solvability for a class of evolution equations ⋮ Parametrices for a class of pseudo differential operators. I ⋮ Hypoellipticity of Fediĭ's type operators under Morimoto's logarithmic condition ⋮ Stochastic Representation and Singularities of Solutions of Second Order Equations with Semidefinite Characteristic Form
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