We apply our deformation theory of periodic bar-and-joint frameworks to tetrahedral crystal structures. The deformation space is investigated in detail for frameworks modelled on quartz, cristobalite and tridymite.
periodic frameworks, deformations, flexibility, silica polymorphs
Borcea, Ciprian and Streinu, Ileana, "Deformations of Crystal Frameworks" (2011). Computer Science: Faculty Publications, Smith College, Northampton, MA.