Maximal pattern complexity and structure of null systems

arXiv:2608.06103 2026 Dynamics 1 ideas extracted · analyzed Aug 31, 2026

What the math gives to ML

The paper provides a quantitative characterization of null dynamical systems through maximal pattern complexity: vanishing sequence entropy is equivalent to polynomial growth of observable orbit patterns for every finite open cover, while equicontinuity corresponds to sublinear growth. Its transferable asset is a measurable complexity-growth certificate for recurrent or state-space neural dynamics, stronger than checking one-step Jacobian stability because it probes combinatorial diversity over arbitrary time subsets. A practical translation is to sample finite partitions of hidden-state trajectories, estimate maximal pattern counts over time subsets, and regularize or stop training when empirical growth exceeds a prescribed polynomial envelope. The main falsifiable prediction is a transition from polynomial to superpolynomial pattern growth near a dynamically chaotic or unstable regime.

Ideas from this paper

Failed on benchmark 2026

Polynomial Orbit-Pattern Regularization

Add a trajectory-complexity monitor and regularizer to an RNN, SSM, or world model that limits the number of distinct hidden-state symbol patterns produced over selected time subsets. The paper's nullness criterion suggests targeting polynomial maximal pattern growth rather than merely minimizing one-step Jacobian norms, thereby suppressing combinatorial explosion of long-horizon behaviors while retaining nontrivial dynamics.

Useful7/10
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Paper: Maximal pattern complexity and structure of null systems arXiv:2608.06103