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Preimage cardinalities of continuous functions

Akhmedli, S

Akhmedli, S (corresponding author), Sheyenne High Sch, West Fargo, ND 58078 USA.

TOPOLOGY AND ITS APPLICATIONS, 2021; 297 ():

Abstract

We find all subsets of N which occur as the set of possible cardinalities of preimages of a continuous function. We also study and answer this questio......

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