Journal of Singularities
volume 13 (2015), 159-168
Received 19 August 2013. Received in revised form 25 November 2014.
We discuss the cross-ratio map of planar quadrilateral linkages, also in the case when one of the links is telescopic. Most of our results are valid for a planar quadrilateral linkage with generic lengths of the sides. In particular, we describe the image of cross-ratio map for quadrilateral linkage and planar robot 3-arm.
quadrilateral linkage, robot 3-arm, moduli space, cross-ratio
|Giorgi Khimshiashvili||Dirk Siersma|
|Ilia State University||Utrecht University|
|Tbilisi, Georgia||The Netherlands|