Non-isotropic Gevrey hypoellipticity for Grushin operators. (Q1848500)
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scientific article; zbMATH DE number 1833277
| Language | Label | Description | Also known as |
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| English | Non-isotropic Gevrey hypoellipticity for Grushin operators. |
scientific article; zbMATH DE number 1833277 |
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Non-isotropic Gevrey hypoellipticity for Grushin operators. (English)
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20 November 2002
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Summary: We determine non-isotropic Gevrey exponents for general Grushin operators based on the results given earlier, where a method to determine isotropic (worst) Gevrey exponents was given. The ideas of the bracket calculus of Bove-Tartakoff and FBI-transformation are also useful.
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