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JOURNALS // Matematicheskii Sbornik // Archive

Mat. Sb., 1996 Volume 187, Number 5, Pages 121–142 (Mi sm131)

This article is cited in 6 papers

Continuous selections of multivalued maps with non-convex non-closed decomposable values

A. A. Tolstonogov

Institute of System Dynamics and Control Theory, Siberian Branch of the Russian Academy of Sciences

Abstract: A class of multivalued maps with non-convex non-closed decomposable values is distinguished, and theorems are proved on the existence of continuous selections for such maps. This class contains multivalued maps whose values are extreme points of continuous multivalued maps with closed convex decomposable values in a Banach space of Bochner-integrable functions. The proofs are based on the Baire category theorem. It is known that the set of extreme points of a closed convex set is in general not closed. Hence the results or paper answer the question of the existence of continuous selections for multivalued maps with non-convex non-closed values.

UDC: 517.965

MSC: Primary 54C65, 54C60; Secondary 34A40, 28B20

Received: 12.01.1995 and 13.11.1995

DOI: 10.4213/sm131


 English version:
Sbornik: Mathematics, 1996, 187:5, 745–766

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