On indexed families of multifunctions generated by families of functions |
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| Authors: | Jolanta Olko |
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| Institution: | 1. Institute of Mathematics, Pedagogical University, ul. Podchora??ych 2, 30-084, Krakow, Poland
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| Abstract: | We present some necessary and some sufficient conditions for a family of multifunctions generated by two families of real functions to be a collapsing, an expanding family or an iteration semigroup. Some properties of set-valued iteration groups generated by commuting homeomorphisms not embeddable in an iteration group are given. |
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