Ukrainian Mathematical Journal

, Volume 66, Issue 7, pp 1122–1125 | Cite as

Theorems on Inclusion for Multivalued Mappings

  • Yu. B. Zelinskii
  • B. A. Klishchuk
  • M. V. Tkachuk
Brief Communications

The paper is devoted to the investigation of some properties of multivalued mappings in Euclidean spaces. Fixed-point theorems are proved for multivalued mappings whose restrictions to a certain subset in the closure of a domain satisfy a “coacute angle condition” or a “strict coacute angle condition.” Similar results for the restrictions of multivalued mappings satisfying certain metric conditions are also obtained.


Euclidean Space Half Space Multivalued Mapping Acute Angle Geometric Form 
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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  • Yu. B. Zelinskii
    • 1
  • B. A. Klishchuk
    • 1
  • M. V. Tkachuk
    • 1
  1. 1.Institute of MathematicsUkrainian National Academy of SciencesKyivUkraine

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