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Journal ArticleDOI

Cones for the Moulton planes

Gerhard Gerlich
- 29 Mar 2008 - 
- Vol. 88, Iss: 1, pp 30-40
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TLDR
In this article, a two-parameter family of affinely connected surfaces which admit the cylinder group as a collineation group of their geodesics is presented, and the Moulton Planes in the radial model of Betten, the circular cone, as well as the real affine plane are part of this family.
Abstract
We present a two-parameter family of affinely connected surfaces which admit the cylinder group as a collineation group of their geodesics. The Moulton Planes in the radial model of Betten, the circular cone, as well as the real affine plane, are part of this family. The Moulton Planes occur in this family in the same way as the real affine plane is contained in a family of cones with decreasing steepness.

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Non-Riemannian geometry

TL;DR: Asymmetric connections Symmetric connections Projective geometry of paths The geometry of subspaces Bibliography as discussed by the authors, see Section 2.1 for a survey of the main sources.