On coincidences of families of mappings on ordered sets |
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Authors: | D A Podoprikhin T N Fomenko |
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Institution: | 1.Mechanics and Mathematics Faculty,Moscow State University,Moscow,Russia |
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Abstract: | New results on fixed points and coincidences of families of set-valued mappings of partially ordered sets obtained without commutativity assumptions are presented. These results develop theorems on fixed points of an isotone self-mapping of an ordered set (for families of set-valued mappings) and theorems about coincidences of two set-valued mappings one of which is isotone and the other is covering (for finite families of set-valued mappings). |
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