Sharkovskii-type conjecture for bifurcations on manifolds

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), τI\tau\in I, undergoes the bifurcation BαB_\alpha at an interior parameter ταI\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.

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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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