On the geometry of the homogeneous representation for the group of proper rigid-body displacements
Journal article
Selig, JM (2013). On the geometry of the homogeneous representation for the group of proper rigid-body displacements. Romanian Journal of Technical Sciences - Applied Mechanics. 58 (1-2), pp. 5 - 28.
Authors | Selig, JM |
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Abstract | This work investigates the geometry of the homogeneous representation of the group of proper rigid-body displacements. In particular it is shown that there is a birational transformation from the Study quadric to the variety determined by the homogeneous representation. This variety is shown to be the join of a Veronese variety with a 2-plane. The rest of the paper looks at sub-varieties, first those which are sub-groups of the displacement group and then some examples defined by geometric constraints. In many cases the varieties are familiar as sub-varieties of the Study quadric, here their transforms to the homogeneous representation is considered. A final section deals with the map which sends each displacements to its inverse. This is shown to be a quadratic birational transformation. |
Keywords | rigid-body displacements, birational transformations, kinematics |
Year | 2013 |
Journal | Romanian Journal of Technical Sciences - Applied Mechanics |
Journal citation | 58 (1-2), pp. 5 - 28 |
Publisher | Publishing House of the Romanian Academy |
ISSN | 0035-4074 |
Publication dates | |
01 Jan 2013 | |
Publication process dates | |
Deposited | 10 Jun 2016 |
Accepted author manuscript | License |
File | File description licence |
https://openresearch.lsbu.ac.uk/item/8794v
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