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

Splitting-Conjugate Latent Dynamics

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
Paper: Linearisation, splitting property and homotopy algebras arXiv:2608.05875