We study the property of openness of the functors for k -nonexpanding and weakly additive functionals. In particular, it is shown that these functors preserve the openness of mappings between finite compact sets but they are not open.
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Translated from Ukrains’kyi Matematychnyi Zhurnal, Vol. 65, No. 11, pp. 1567–1574, November, 2013.
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Karchevs’ka, L.I. ON the Openness of Functors of k-Nonexpanding and Weakly Additive Functionals. Ukr Math J 65, 1733–1742 (2014). https://doi.org/10.1007/s11253-014-0892-0
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DOI: https://doi.org/10.1007/s11253-014-0892-0