D. Repovs et al., C-1-HOMOGENEOUS COMPACTA IN R(N) ARE C-1-SUBMANIFOLDS OF R(N), Proceedings of the American Mathematical Society, 124(4), 1996, pp. 1219-1226
We give the characterization of C-1-homogeneous compacta in R(n): Let
K be a locally compact (possibly nonclosed) subset of R(n). Then K is
C-1-homogeneous if and only if K is a C-1-submanifold of R(n).