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Sibirskie Èlektronnye Matematicheskie Izvestiya [Siberian Electronic Mathematical Reports], 2021, Volume 18, Issue 1, Pages 121–135
DOI: https://doi.org/10.33048/semi.2021.18.010
(Mi semr1352)
 

This article is cited in 3 scientific papers (total in 3 papers)

Mathematical logic, algebra and number theory

Effective Wadge hierarchy in computable quasi-Polish spaces

V. L. Selivanov

A.P. Ershov Institute of Informatics Systems, 6, Lavrent'eva ave., Novosibirsk, 630090, Russia
Full-text PDF (410 kB) Citations (3)
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Abstract: We define and study an effective version of the Wadge hierarchy in computable quasi-Polish spaces which include most spaces of interest for computable analysis. Along with hierarchies of sets we study hierarchies of $k$-partitions which are interesting on their own. We show that levels of such hierarchies are preserved by the computable effectively open surjections, that if the effective Hausdorff-Kuratowski theorem holds in the Baire space then it holds in every computable quasi-Polish space, and we extend the effective Hausdorff theorem to $k$-partitions.
Keywords: computable quasi-Polish space, effective Wadge hierarchy, fine hierarchy, $k$-partition, preservation property, effective Hausdorff theorem.
Funding agency Grant number
Russian Foundation for Basic Research 20-51-50001
The work is supported by RFBR-JSPS Grant 20-51-50001.
Received July 27, 2020, published March 1, 2021
Bibliographic databases:
Document Type: Article
UDC: 510.5
MSC: 03D15
Language: English
Citation: V. L. Selivanov, “Effective Wadge hierarchy in computable quasi-Polish spaces”, Sib. Èlektron. Mat. Izv., 18:1 (2021), 121–135
Citation in format AMSBIB
\Bibitem{Sel21}
\by V.~L.~Selivanov
\paper Effective Wadge hierarchy in computable quasi-Polish spaces
\jour Sib. \`Elektron. Mat. Izv.
\yr 2021
\vol 18
\issue 1
\pages 121--135
\mathnet{http://mi.mathnet.ru/semr1352}
\crossref{https://doi.org/10.33048/semi.2021.18.010}
\isi{https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=Publons&SrcAuth=Publons_CEL&DestLinkType=FullRecord&DestApp=WOS_CPL&KeyUT=000641254200001}
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  • https://www.mathnet.ru/eng/semr/v18/i1/p121
  • This publication is cited in the following 3 articles:
    Citing articles in Google Scholar: Russian citations, English citations
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    Full-text PDF :58
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