科研之友
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摘要
We give a new proof for the C-infinity regularity of C-2 smooth conformal mappings of the sub-Riemannian Heisenberg group. Our proof avoids any use of nonlinear potential theory and relies only on hypoellipticity of Hormander operators and quasicon-formal flows. This approach is inspired by prior work of Sarvas and Liu.
- 出版日期2017
