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Published in 2019 at "Quaestiones Mathematicae"
DOI: 10.2989/16073606.2018.1498037
Abstract: Abstract The ultrametrically injective hull TX of an ultrametric space (X, d) is investigated by viewing it as the space of ultra-extremal functions over X. It turns out that the ultra-extremal functions are also ultra-KaĆ„etov…
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Keywords:
ultra extremal;
space ultra;
functions preserved;
extremal functions ... See more keywords