1980
DOI: 10.1002/malq.19800261002
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Pseudoeuklidische Räume im Aufbau der Geometrie aus dem Spiegelungsbegriff

Abstract: PSEUDOEUKLIDISCHE RBUME I M AUFBAU DER GEOMXTRIE AUS DEM SPIEGELTJNGSBEGRIFF von BENNO KLOTZEK in Potsdam und RUDOLF OTTENBERG in Berlin (DDR) Einleitung Hier betrachten wir einen vierdimensionalen pseudoeuklidischen Raum zunachst als vierdimensionalen affinen Raum iiber einem Korper von einer Charakteristik += 2, in dem eine symmetrische Bilinearform q~ uber dem zugehorigen Vektorraum V mit den Eigenschaf ten eine Metrik bestimmt. Dagegen machen wir keine Voraussetzungen beziiglich Anordnung oder gar Stetigke… Show more

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Cited by 2 publications
(3 citation statements)
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“…So a first step in an attempt to characterize Minkowski space entirely in terms of the data ({R i } i∈I , Ω) would be to find the algebraic relations in the group T which would enable one to derive in this manner four-dimensional Minkowski space. This has been accomplished in one form [44], but the particular geometric significance of the initial algebraic data in our setting entails that a different set of algebraic axioms be determined [66]. The second step would be to determine which additional structure on I, or equivalently, which relations among the algebras in the net {R i } i∈I , imply via modular theory the requisite relations among the generating involutions J i (equivalently, τ i ) found in the first step.…”
Section: Summary and Further Remarksmentioning
confidence: 99%
“…So a first step in an attempt to characterize Minkowski space entirely in terms of the data ({R i } i∈I , Ω) would be to find the algebraic relations in the group T which would enable one to derive in this manner four-dimensional Minkowski space. This has been accomplished in one form [44], but the particular geometric significance of the initial algebraic data in our setting entails that a different set of algebraic axioms be determined [66]. The second step would be to determine which additional structure on I, or equivalently, which relations among the algebras in the net {R i } i∈I , imply via modular theory the requisite relations among the generating involutions J i (equivalently, τ i ) found in the first step.…”
Section: Summary and Further Remarksmentioning
confidence: 99%
“…The approach in this paper differs from the method used both in [37] for two-dimensional Minkowski space and in [32] for four-dimensional Minkowski space. In these papers one begins by constructing the affine space.…”
Section: Absolute Geometry and Three-dimensional Minkowski Spacementioning
confidence: 99%
“…In these papers one begins by constructing the affine space. In the two-dimensional case [37], the elements of the generating set G are identified with line reflections in an affine plane, while in the four-dimensional case [32], the elements of the generating set G are identified with reflections about hyperplanes in an affine space. Thus, in each of these papers, the generating set G is identified with a set of symmetries.…”
Section: Absolute Geometry and Three-dimensional Minkowski Spacementioning
confidence: 99%