Hypoelliptic operators in \(\mathbb{R}^ 3\) of the form \(X^ 2_ 1+X^ 2_ 2\) (Q1210064)
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scientific article; zbMATH DE number 169027
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Hypoelliptic operators in \(\mathbb{R}^ 3\) of the form \(X^ 2_ 1+X^ 2_ 2\) |
scientific article; zbMATH DE number 169027 |
Statements
Hypoelliptic operators in \(\mathbb{R}^ 3\) of the form \(X^ 2_ 1+X^ 2_ 2\) (English)
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16 May 1993
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sufficient conditions for hypoellipticity
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