Linearisation, splitting property and homotopy algebras
arXiv:2608.05875
2026
Dynamics
1 ideas extracted · analyzed Aug 31, 2026
What the math gives to ML
The paper gives a constructive algebraic criterion for when a nonlinear formal map or vector field can be removed by a near-identity change of coordinates: linearisation is equivalent to the existence of a splitting map into coderivations satisfying an explicit intertwining identity. This suggests a principled local-conjugacy module for latent dynamical models, in which a nonlinear world-model transition is represented in coordinates where its learned dynamics are approximately linear. The transferable asset is the recursive near-identity coordinate transform and its certificate-like equivariance constraint, which can be converted into a polynomial jet regularizer and tested on rollout stability and linear extrapolation.
Ideas from this paper
Unverified
2026
Equip a latent transition model with a near-identity polynomial coordinate transform that conjugates the nonlinear transition to a linear latent operator, at least locally around a reference state. Train the transform jointly with the dynamics using both the usual prediction loss and the paper's splitting/intertwining residual, so that multi-step prediction is performed partly in approximately linearised coordinates.
Useful5/10
Difficulty6/10
Novelty6/10