attractivity (attracts points in a neighbourhood W of I, attracts points in R, attracts all compact sets in R, attracts all sets in R) and stability (unstable, stable, asymptotically stable, globally asymptotically stable) (a) f(x) = 0. Determine the (only) compact and invariant set I. (b) f(x) = -x. Show that I = and stability. Is {0} the only compact and invariant set? Prove your answer. {0} is a compact and invariant set, and determine its attractivity

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Need help with discrete-time dynamical system problem about stability and attractivity.

Consider the discrete-time dynamical systems (R, No, St) given by the iteration of the
map f:R → R below. Determine and prove the attractivity and stability properties of I,
using the definition:
• attractivity (attracts points in a neighbourhood W of I, attracts points in R, attracts
all compact sets in R, attracts all sets in R)
• and stability (unstable, stable, asymptotically stable, globally asymptotically stable)
(a) f(x) = 0.
Determine the (only) compact and invariant set I.
(b) f(г) — —г.
= -:
Show that I
{0} is a compact and invariant set, and determine its attractivity
and stability.
Is {0} the only compact and invariant set? Prove your answer.
Transcribed Image Text:Consider the discrete-time dynamical systems (R, No, St) given by the iteration of the map f:R → R below. Determine and prove the attractivity and stability properties of I, using the definition: • attractivity (attracts points in a neighbourhood W of I, attracts points in R, attracts all compact sets in R, attracts all sets in R) • and stability (unstable, stable, asymptotically stable, globally asymptotically stable) (a) f(x) = 0. Determine the (only) compact and invariant set I. (b) f(г) — —г. = -: Show that I {0} is a compact and invariant set, and determine its attractivity and stability. Is {0} the only compact and invariant set? Prove your answer.
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