Isaev, AlexanderZaitsev, Dmitri2016-03-212016-03-211050-6926http://hdl.handle.net/1885/100826Let C2,1 be the class of connected 5-dimensional CR-hypersurfaces that are 2-nondegenerate and uniformly Levi degenerate of rank 1. We show that the CR-structures in C2,1 are reducible to so (3,2)-valued absolute parallelisms and give applications of thisA. Isaev was supported by the Australian Research Council. D. Zaitsev was supported in part by Science Foundation Ireland grant 10/RFP/MTH2878.© Mathematica Josephina, Inc. 2013Reduction of G-structures to absolute parallelisms2-Nondegenerate uniformly Levi degenerate CR-structures201310.1007/s12220-013-9419-42016-06-14