Fig. 5.

Scalar curvature is correlated with cell type and RNA velocity vector field speed and divergence. (A) Boxplot of the distribution of scalar curvatures for each annotated cell type in the PBMC dataset. The median is marked by the bullseye and the interquartile range by the thick blue bar. The whiskers extend up to 1.5 times the interquartile range in each direction. (B) As in A, but for the gastrulation dataset. (C) As in A, but for the brain dataset. (D and E) As in Fig. 4 A and B for a mouse dentate gyrus dataset with $N\approx 2\times 10^4$, $d=2$, and $n=6$. (F) Flow lines (shown as black arrows) and speed (colors) of the inferred RNA velocity vector field (SI Appendix, Supporting Methods, section F.5). (G) Divergence of the inferred RNA velocity vector field (SI Appendix, Supporting Methods, section F.5).