Discontinuity and Involutions on Countable Sets

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dc.creatorKim, Sung Soo
dc.creatorPlewik, Szymon
dc.date2007-05-15
dc.date.accessioned2026-07-07T08:01:38Z
dc.date.available2026-07-07T08:01:38Z
dc.descriptionFor any infinite subset $X$ of the rationals and a subset $F \subseteq X$ which has no isolated points in $X$ we construct a function $f: X \to X$ such that $f(f(x))=x$ for each $x\in X$ and $F $ is the set of discontinuity points of $f$.
dc.descriptionThe paper was published
dc.identifierhttps://arxiv.org/abs/0705.2109
dc.identifierhttp://arxiv.org/abs/0705.2109
dc.identifierAnnales Mathematics Silesianae 17 (2003), 7 - 8
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/128973
dc.subjectGeneral Mathematics
dc.subjectCombinatorics
dc.subject26A15
dc.titleDiscontinuity and Involutions on Countable Sets
dc.typetext

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