Characterizing the universal rigidity of generic tensegrities
Characterizing the universal rigidity of generic tensegrities
复制标题
表征通用张拉整体的通用刚性
DOI:
10.1007/s10107-021-01730-2
复制
发表时间:
2021
影响因子:
2.7
通讯作者:
Tanigawa Shin-ichi
中科院分区:
文献类型:
--
作者:
Oba Ryoshun;Tanigawa Shin-ichi
A tensegrity is a structure made from cables, struts, and stiff bars. Ad-dimensional tensegrity is universally rigid if it is rigid in any dimensionwith. The celebrated super stability condition due to Connelly gives a sufficient condition for a tensegrity to be universally rigid. Gortler and Thurston showed that super stability characterizes universal rigidity when the point configuration is generic and every member is a stiff bar. We extend this result in two directions. We first show that a generic universally rigid tensegrity is super stable. We then extend it to tensegrities with point group symmetry, and show that this characterization still holds as long as a tensegrity is generic modulo symmetry. Our strategy is based on the block-diagonalization technique for symmetric semidefinite programming problems, and our proof relies on the theory of real irreducible representations of finite groups.
登录
查看更多内容
DOI:
10.1007/978-1-4939-0781-6_12
发表时间:
2012
期刊:
arXiv: Geometric Topology
影响因子:
--
作者:
Justin Malestein;Louis Theran
通讯作者:
Louis Theran
影响因子:
3.1
作者:
M. K. D. C. Silva;L. Tunçel
通讯作者:
L. Tunçel
DOI:
10.1016/j.dam.2006.11.011
发表时间:
2007
期刊:
Discret. Appl. Math.
影响因子:
--
作者:
A. Alfakih
通讯作者:
A. Alfakih
DOI:
10.1093/imrn/rnx014
发表时间:
2016
期刊:
arXiv: Metric Geometry
影响因子:
--
作者:
R. Connelly;S. Gortler;Louis Theran
通讯作者:
Louis Theran
DOI:
--
发表时间:
2000
期刊:
影响因子:
--
作者:
G. Pataki
通讯作者:
G. Pataki