Powered by OpenAIRE graph
Found an issue? Give us feedback
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Semigroup Forumarrow_drop_down
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
Semigroup Forum
Article . 1985 . Peer-reviewed
License: Springer TDM
Data sources: Crossref
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
zbMATH Open
Article
Data sources: zbMATH Open
versions View all 2 versions
addClaim

A nonlocally compact nondiscrete topology for the α-bicyclic semigroup

A nonlocally compact nondiscrete topology for the \(\alpha\)-bicyclic semigroup
Authors: Selden, A.A.;

A nonlocally compact nondiscrete topology for the α-bicyclic semigroup

Abstract

For any ordinal number \(\alpha\), let \(H_{\alpha}\) be the set of ordinal numbers less than \(\omega^{\alpha}\). The \(\alpha\)-bicyclic semigroup is \(H_{\alpha}\times H_{\alpha}\) with the operation \[ (\beta,\gamma)(\delta,\eta)=(\beta +(\max (\gamma,\delta)-\gamma,\quad \eta +(\max (\gamma,\delta)-\delta), \] where \(+\) is ordinal addition. It is known that this semigroup cannot have a locally compact topology for which it becomes a topological inverse semigroup, other than the discrete topology. In this paper it is shown, by putting \(\alpha =2\), that this result is untrue if we do not restrict ourselves to locally compact topologies.

Country
Germany
Related Organizations
Keywords

510.mathematics, locally compact topology, topological inverse semigroup, Structure of topological semigroups, \(\alpha \) -bicyclic semigroup, Article

  • BIP!
    Impact byBIP!
    selected citations
    These citations are derived from selected sources.
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    4
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Top 10%
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
Powered by OpenAIRE graph
Found an issue? Give us feedback
selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
4
Average
Top 10%
Average
Green