CR-invariance of the Steinness index

Jihun Yum

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arXiv · 1908.01214

CR-invariance of the Steinness index

Jihun Yum

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Abstract

We characterize the Diederich-Fornaess index and the Steinness index in terms of a special 1-form, which we call D'Angelo 1-form. We then prove that the Diederich-Fornaess and Steinness indices are invariant under CR-diffeomorphisms by showing CR-invariance of D'Angelo 1-forms.

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Jihun Yum. 2019-08-03. CR-invariance of the Steinness index. https://arxiv.org/abs/1908.01214

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