Sharkovskii-type conjecture for bifurcations on manifolds

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Let MM be a smooth, orientable, metrizable manifold of dimension at least 22. A bifurcation ordering conjecture. There exists a class of bifurcations {Bα}α\{B_\alpha\}_\alpha and a partial dynamical ordering on {Bα}α\{B_\alpha\}_\alpha, both depending on MM, such that if a C1C^1 one-parameter family s˙=Fτ(s)\dot{s}=F_\tau(s), τ∈I\tau\in I, undergoes the bifurcation BαB_\alpha at an interior parameter τα∈I\tau_\alpha\in I, then for every Bβ<BαB_\beta<B_\alpha with respect to the dynamical ordering, there exists at least one parameter τβ\tau_\beta interior to II at which s˙=Fτ(s)\dot{s}=F_\tau(s) undergoes the bifurcation BβB_\beta. This proposes a Sharkovskii-type dynamical ordering for bifurcations on arbitrary smooth manifolds of dimension at least 22; the existence of the relevant ordering and its asserted forcing property are presented as extensions of the paper's study of topology and bifurcations via the Entropy flow.

References

Primary source

Eran Igra, Valerii Sopin and Yanghong Yu, “When Entropy flows: drifting along the route to Chaos”, arXiv:2606.24289 (2026).

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