On the second subprincipal symbol of a pseudodifferential operator (Q4735561)
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scientific article; zbMATH DE number 4122521
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | On the second subprincipal symbol of a pseudodifferential operator |
scientific article; zbMATH DE number 4122521 |
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On the second subprincipal symbol of a pseudodifferential operator (English)
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1989
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second subprincipal symbol
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change of variables
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invariants
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