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cs.RO2025
Construction and deformation of P-hedra using control polylines
Georg Nawratil
In the 19th International Symposium on Advances in Robot Kinematics the author introduced a novel class of continuous flexible discrete surfaces and mentioned that these so-called…
cs.CG2025
Flexible arrangement of two Bennett tubes
Georg Nawratil
In analogy to flexible bipyramids, also known as Bricard octahedra, we study flexible couplings of two Bennett mechanisms. The resulting flexible bi-Bennett structures can be used…
math.AG2025
On flexes associated with higher-order flexible bar-joint frameworks
Georg Nawratil
The famous example of the double-Watt mechanism given by Connelly and Servatius raises some problems concerning the classical definitions of higher-order flexibility and rigidity,…