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arXiv · 2512.11604

On contact and finitely Levi-nondegenerate CR algebras

Stefano Marini·Costantino Medori·Mauro Nacinovich
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Abstract

We study CR-manifolds of arbitrary CR codimension, mainly focusing on Levi and contact-nondegeneracy and depth. We investigate these and other invariants in the locally homogeneous case, developing a comprehensive theory which establishes correspondences with related properties of the associated CR-algebras and, in the parabolic case, with the combinatorics of their cross-marked painted root diagrams.

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Stefano Marini, Costantino Medori, Mauro Nacinovich. 2025-12-12. On contact and finitely Levi-nondegenerate CR algebras. https://arxiv.org/abs/2512.11604

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