Hypoelliptic partial differential equations of principal type. Sufficient conditions and necessary conditions (Q5642923)
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scientific article; zbMATH DE number 3370831
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Hypoelliptic partial differential equations of principal type. Sufficient conditions and necessary conditions |
scientific article; zbMATH DE number 3370831 |
Statements
Hypoelliptic partial differential equations of principal type. Sufficient conditions and necessary conditions (English)
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1971
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