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math.CV2023
On 3-nondegenerate CR manifolds in dimension 7 (II): the intransitive case
Boris Kruglikov, Andrea Santi
We investigate 3-nondegenerate CR structures in the lowest possible dimension 7 and show that 8 is the maximal dimension for the Lie algebra of symmetries of such structures. The n…
math.CV2023★ 2 cited
On 3-nondegenerate CR manifolds in dimension 7 (I): the transitive case
Boris Kruglikov, Andrea Santi
We investigate 3-nondegenerate CR structures in the lowest possible dimension 7, and one of our goals is to prove Beloshapka's conjecture on the symmetry dimension bound for hypers…