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The conjecture characterizing rank 2 distributions with empty fundamental-form locus
Let $D$ be a rank $2$ distribution, let $\aleph_D=\{\lambda\in\mathcal R_D:{\cal A}_\lambda\neq 0\}$ , and let $g_{r,2}$ denote the free nilpotent $r$ -step Lie algebra with two gene…
Conjectureopendifferential-geometry nilpotent-lie-algebras rank-2-distributionsarXiv posted 2 days ago

The conjecture characterizing rank 2 distributions with empty fundamental-form locus