In the SIGGRAPH 2014 paper [SvTSH14] an approach for animating deformable objects using sparse spacetime constraints is introduced. This report contains the proofs of two theorems presented in the paper.

翻译：在SISGGRAPH 2014年文件[SvTSH14]中,采用了一种利用稀少的时空限制来模拟可变形物体的方法,本报告载有文件中介绍的两个理论的证明。