In this paper we continue our study of local rigidity for maps of CR submanifolds of the complex space. We provide a linear sufficient condition for local rigidity of finitely nondegenerate maps between minimal CR manifolds. Furthermore, we show higher order infinitesimal conditions can be used to give a characterization of local rigidity.
"Sufficient and necessary conditions for local rigidity of CR mappings and higher order infinitesimal deformations." Ark. Mat. 58 (2) 213 - 242, October 2020. https://doi.org/10.4310/ARKIV.2020.v58.n2.a1