Uniquely realisable graphs in analytic normed planes
Abstract
A bar-joint framework in the Euclidean space is globally rigid if it is the unique realisation, up to rigid congruences, of in with the edge lengths of . Building on key results of Hendrickson and Connelly, Jackson and Jord\'{a}n gave a complete combinatorial characterisation of when a generic framework is global rigidity in . We prove an analogous result when the Euclidean norm is replaced by any norm that is analytic on . More precisely, we show that a graph is globally rigid in a non-Euclidean analytic normed plane if and only if is 2-connected and contains 2 edge-disjoint spanning trees for all . The main technical tool is a recursive construction of 2-connected and redundantly rigid graphs in analytic normed planes. We also obtain some sufficient conditions for global rigidity as corollaries of our main result and prove that the analogous necessary conditions hold in -dimensional analytic normed spaces.
Keywords
Cite
@article{arxiv.2206.07426,
title = {Uniquely realisable graphs in analytic normed planes},
author = {Sean Dewar and John Hewetson and Anthony Nixon},
journal= {arXiv preprint arXiv:2206.07426},
year = {2022}
}
Comments
40 pages, 16 figures