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Chaotic Dynamics of Conformable Semigroups via Classical Theory

Dynamical Systems 2026-02-09 v1 Mathematical Physics Analysis of PDEs Classical Analysis and ODEs math.MP

Abstract

Conformable derivatives involve a fractional parameter while preserving locality: on smooth functions they reduce to a classical derivative multiplied by an explicit weight. Exploiting this structural feature, we show that conformable time evolution does not give rise to a genuinely new semigroup theory. Rather, it can be fully interpreted as a classical C0C_0--semigroup observed through a nonlinear change of time. For δ(0,1]\delta\in(0,1], we introduce the conformable clock Ψ(t)=tδδ, \Psi(t)=\frac{t^\delta}{\delta}, and prove that every C0C_0--δ\delta--semigroup Sδ\mathcal S_\delta admits the representation Sδ(t)=T(Ψ(t)), \mathcal S_\delta(t)=\mathcal T(\Psi(t)), where T\mathcal T is a uniquely determined classical C0C_0--semigroup on the same state space. This correspondence is exact at the infinitesimal level: the δ\delta--generator of Sδ\mathcal S_\delta coincides with the generator of T\mathcal T on a common domain, and conformable mild solutions are in one-to-one correspondence with classical mild solutions under the reparametrization s=Ψ(t)s=\Psi(t). In particular, orbit sets are unchanged by the conformable clock, so orbit-based linear dynamical properties are invariant; δ\delta--hypercyclicity and δ\delta--chaos coincide with their classical counterparts. As an application, we derive a conformable version of the Desch--Schappacher--Webb chaos criterion by transporting the classical result. The analysis is carried out in conformable Lebesgue spaces Lp,δL^{p,\delta}, which are shown to be isometrically equivalent to standard LpL^p spaces, allowing a direct transfer of estimates and spectral arguments. Altogether, the results clarify which dynamical features of conformable models are intrinsic and which arise solely from a nonlinear change of time.

Keywords

Cite

@article{arxiv.2602.06782,
  title  = {Chaotic Dynamics of Conformable Semigroups via Classical Theory},
  author = {Mohamed Khoulane and Aziz El Ghazouani and M'hamed Elomari},
  journal= {arXiv preprint arXiv:2602.06782},
  year   = {2026}
}

Comments

23 pages

R2 v1 2026-07-01T10:24:37.238Z