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math.CV2023
Infinitesimal CR Symmetries of Accidental CR Structures
C. Denson Hill, Joël Merker, Zhaohu Nie +1
In this companion paper to our article {\em Accidental CR structures} (arxiv.org, January 2023), thought of as an appendix not submitted for publication, we provide complete explic…
math.CV2023
Accidental CR structures
C. Denson Hill, Joël Merker, Zhaohu Nie +1
We noticed a discrepancy between Élie Cartan and Sigurdur Helgason about the lowest possible dimension in which the simple exceptional Lie group can be realized. This r…