On the Existence of Geometrically Attracting Measures for Iterated Function Systems with Varying Sets of Transformations

arXiv:2608.29022 2026 Dynamics 1 ideas extracted · analyzed Sep 1, 2026

What the math gives to ML

The paper develops geometric-attraction criteria for iterated function systems whose transformation families and selection probabilities change with time. Its transferable mechanism is a quantitative contraction condition on products of time-dependent random-map gains, guaranteeing that state distributions forget their initialization at a geometric rate in bounded-Lipschitz distance. A direct neural-network use is a stochastic recurrent or state-space architecture with time-varying candidate layers, where the candidate Jacobian gains and routing probabilities are constrained so that their cumulative expected gain decays geometrically. The central falsifiable prediction is that the initialization-distance decay rate is controlled by the accumulated logarithmic contraction exponent.

Ideas from this paper

Failed on benchmark 2026

Geometrically Attracting Random Recurrent Layer

Replace a recurrent update by a time-inhomogeneous random choice among candidate maps, and regulate the candidate Jacobian gains so that the expected product of gains contracts geometrically. This should make hidden-state distributions forget their initial state even when the map family and selection probabilities vary over time, improving long-horizon stability without requiring every individual candidate map to be strongly contractive.

Useful7/10
Difficulty5/10
Novelty6/10
Paper: On the Existence of Geometrically Attracting Measures for Iterated Function Systems with Varying Sets of Transformations arXiv:2608.29022