2 papers
math.DG2026
Anchor Radicals and Metric Rigidity in -Lie--Rinehart Algebras
Irmely Gladesh Mabanza Nsiloulou, Basile Guy Richard Bossoto
For an -Lie--Rinehart algebra, , the anchor is defined on $\Aext{n-1}L$, so its kernel does not determine a distinguished submodule of . We introduce the anchor radical…
math.DG2026
Geometric turbulence: a geodesic-regression crisis indicator for equity covariance dynamics, with evidence from African markets
E. B. Camara, Y. U. Gaba, I. G. M. Nsiloulou
The covariance matrix of a basket of assets is a symmetric positive-definite object that evolves on a curved manifold, not on a flat vector space. Standard linear regression on its…