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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
Results in Mathematics
Article . 1995 . 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 . 1995
Data sources: zbMATH Open
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
PubliCatt
Article . 1995
Data sources: PubliCatt
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Dilatation Spaces

Dilatation spaces
Authors: KIST G; PIANTA S; ZIZIOLI, Elena;

Dilatation Spaces

Abstract

Let \((P,{\mathcal L})\) be an incidence space. Following a definition of \textit{B. Reinmiedl} [`Verallgemeinerte kinematische Räume', Diss. TU München (1990; Zbl 0721.51018)] the authors call a map \(\delta:P\to P\) a dilatation if \(\delta(L)\cap L=\emptyset\) or \(\delta(L)=L\) for any \(L\in{\mathfrak G}\) and \((P,{\mathfrak L},\cdot)\) a dilatation space if \(P\) is supplied with a binary operation such that \(x\to ax\), \(x\to xa\) are dilatations for any \(a\overline\in P\). For the nontrivial cases \(|{\mathfrak L}|\geq 2\), \(|L|\geq 3\) for each \(L\overline\in{\mathfrak L}\) they can show: \((P,\cdot)\) is a quasigroup, in particular a kinematic loop if it has an identity, the set \(P_{id}\) of idempotents of \((P,\cdot)\) is empty, \(=P\) or is of cardinality 1, if \(P_{id}=\varphi\) then \((P,{\mathcal F},\cdot)\) is a fibered quasigroup with fibration \({\mathcal F}=\{F\overline\in{\mathcal L};F\cdot F\subset F\}\), if \(P_{id}\neq\emptyset\) then \((P,{\mathcal L},\cdot)\) is a kinematic quasigroup. Furthermore, conditions and relevant examples are given to verify whether a dilatation space embedded into a projective space is a kinematic space in the sense of H. Karzel.

Country
Italy
Keywords

Kinematic spaces, Loops, quasigroups, Incidence structures embeddable into projective geometries, dilatation space, projective embedding, kinematic space, linear space with parallelism, dilatation, incidence quasigroup

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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!
2
Average
Average
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