TY - JOUR
T1 - Equivalent definitions of rescaled expansiveness
AU - Wen, Xiao
AU - Yu, Yining
N1 - Publisher Copyright:
© 2018 Korean Mathematical Society.
PY - 2018
Y1 - 2018
N2 - Recently, a new version of expansiveness which is closely attached to some certain weak version of hyperbolicity was given for C1 vector fields as following: a C1 vector field X will be called rescaling expansive on a compact invariant set Λ of X if for any ɛ > 0 there is δ > 0 such that, for any x, y ∈ Λ and any time reparametrization θ: R → R, if d(ϕt(x), ϕθ(t) (y)) ≤ δ‖X(ϕt(x))‖ for all t ∈ R, then ϕθ(t) (y) ∈ϕ(−ɛ,ɛ) (ϕt(x)) for all t ∈ R. In this paper, some equivalent definitions for rescaled expansiveness are given.
AB - Recently, a new version of expansiveness which is closely attached to some certain weak version of hyperbolicity was given for C1 vector fields as following: a C1 vector field X will be called rescaling expansive on a compact invariant set Λ of X if for any ɛ > 0 there is δ > 0 such that, for any x, y ∈ Λ and any time reparametrization θ: R → R, if d(ϕt(x), ϕθ(t) (y)) ≤ δ‖X(ϕt(x))‖ for all t ∈ R, then ϕθ(t) (y) ∈ϕ(−ɛ,ɛ) (ϕt(x)) for all t ∈ R. In this paper, some equivalent definitions for rescaled expansiveness are given.
KW - Flowbox
KW - Multi-singular hyperbolic
KW - Rescaling expansive
KW - Singular hyperbolic
UR - https://www.scopus.com/pages/publications/85045935718
U2 - 10.4134/JKMS.j170326
DO - 10.4134/JKMS.j170326
M3 - 文章
AN - SCOPUS:85045935718
SN - 0304-9914
VL - 55
SP - 593
EP - 604
JO - Journal of the Korean Mathematical Society
JF - Journal of the Korean Mathematical Society
IS - 3
ER -