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Islands of stability and complex universality relations

journal contribution
posted on 2023-05-17, 23:52 authored by Robert DelbourgoRobert Delbourgo, Hughes, P, Kenny, BG
For complex mappings of the type z→λz(1−z), universality constants α and δ can be defined along islands of stability lying on filamentary sequences in the complex λ plane. As the end of the filament is approached, asymptotic values α N ∼λ N−1 ∞, δ N /α2 N ∼1 are attained, where μ∞=λ∞(λ∞−2)/4, is associated with the limiting form of the universal function for that sequence, g(z)=1−μ∞ z 2. These results are complex generalizations of the real mapping case (applying to tangent bifurcations and windows of stability) where μ∞=2 and δ/α2→ (2)/(3) correspond to the filament running along the real axis.

History

Publication title

Journal of Mathematical Physics

Volume

28

Pagination

60-63

ISSN

0022-2488

Department/School

School of Natural Sciences

Publisher

Amer Inst Physics

Place of publication

Circulation & Fulfillment Div, 2 Huntington Quadrangle, Ste 1 N O 1, Melville, USA, Ny, 11747-4501

Repository Status

  • Restricted

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