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Journal of Geometry
Article . 1987 . Peer-reviewed
License: Springer TDM
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Fibered incidence loops and kinematic loops

Fibered indidence loops and kinematic loops
Authors: ZIZIOLI, Elena;

Fibered incidence loops and kinematic loops

Abstract

Diese Arbeit ist im Anschluß an die Arbeit von \textit{H. Karzel} und \textit{G. P. Kist}, Rings and geometry, Nato Asi Ser., Ser. C 160, 437-509 (1985; Zbl 0598.51012)) entstanden. Sie verallgemeinert dort abgeleitete Ergebnisse durch Abschwächung der Bedingungen an die zugrundegelegte algebraische Struktur. Es werden die Begriffe ``incidence groupoid'', ``incidence loop'' und ``kinematic loop'' definiert. Weiter werden Bedingungen an die Faserung angegeben, so daß die Aussage: ``Wenn (P,.) ein loop mit der Faserung F ist und \(R: =\{a.X|\) \(a\in P\), \(X\in F\}\), dann ist (P,R,.) ein gefasertes Inzidenzloop,'', richtig wird. Es wird gezeigt, daß unter bestimmten Bedingungen ein gefasertes Inzidenzloop mit einem Parallelismus ausgestattet werden kann, und es wird der Frage nachgegangen, wann alle Linksabbildungen Streckungen sind. Es stellt sich heraus, daß die Bedingung für die Existenz eines Parallelismus in einem gefaserten Loop bereits so stark ist, daß für endliche Faserloops (P,.) bereits eine Gruppe ist. Im letzten Abschnitt werden Beispiele von Inzidenzloops diskutiert, die von Algebren abgeleitet werden.

Country
Italy
Keywords

Kinematic spaces, incidence loop, kinematic loop, incidence group

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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!
18
Average
Top 10%
Average
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