Limit point of a trajectory
of a dynamical system
(an -limit point) or
(an -limit point), where is a sequence such that as in (1), or as in (2), and for which the limits in (1) or (2) exist.
For a trajectory of a dynamical system (or, in other words, for , cf. ), an -limit point (-limit point) is the same as an -limit point (-limit point) of the trajectory of the dynamical system (the system with reverse time). The set () of all -limit points (-limit points) of a trajectory is called the -limit set (-limit set) of this trajectory (cf. Limit set of a trajectory).
|||V.V. Nemytskii, V.V. Stepanov, "Qualitative theory of differential equations" , Princeton Univ. Press (1960) (Translated from Russian)|
For a dynamical system with discrete time (or, a cascade) similar definitions and the same terminology are used (now in the above the sequences have to be in ).
Limit point of a trajectory. Encyclopedia of Mathematics. URL: http://encyclopediaofmath.org/index.php?title=Limit_point_of_a_trajectory&oldid=17356