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JOURNALS // Vestnik Udmurtskogo Universiteta. Matematika. Mekhanika. Komp'yuternye Nauki // Archive

Vestn. Udmurtsk. Univ. Mat. Mekh. Komp. Nauki, 2012 Issue 2, Pages 28–33 (Mi vuu319)

This article is cited in 4 papers

MATHEMATICS

Dynamical system of translations in the space of multi-valued functions with closed images

E. A. Panasenko

Department of Algebra and Geometry, Tambov State University, Tambov, Russia

Abstract: In the work there is considered the dynamical system of translations in the space $\mathfrak R$ of continuous multi-valued functions with images in complete metric space $(\mathrm{clos}(\mathbb R^n),\rho_\mathrm{cl})$ of nonempty closed subsets of $\mathbb R^n$. The distance between such functions is measured by means of the metric analogous to the Bebutov metric constructed for the space of continuous real-valued functions defined on the whole real line. It is shown that for compactness of the trajectory's closure in $\mathfrak R$ it is sufficient to have initial function bounded and uniformly continuous in the $\rho_\mathrm{cl}$ metric. As consequence, it is also proved that the trajectory's closure of a recurrent or an almost periodic motion is compact in $\mathfrak R$.

Keywords: space of multivalued functions with closed images, dynamical system of translations, closure of trajectory.

UDC: 517.938.5+517.911.5

MSC: 37С99, 34A60

Received: 27.12.2011

DOI: 10.20537/vm120203



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