Existence and uniqueness of endpoints of closed set-valued asymptotic contractions in metric spaces

Abstract

Investigations of problems of set-valued asymptotic fixed point theory of set-valued dynamic systems are initiated. The concepts of the set-valued asymptotic contractions of set-valued dynamic systems T : M → 2 M in metric space M are introduced and conditions guaranteeing the existence and uniqueness of endpoints v ∈ M of set-valued dynamic systems of set-valued asymptotic contractions T : M → 2 M and convergence to v of all generalized sequences of iterations of T are established. Examples and remarks show a fundamental difference between our results and the well-known ones.