%0 Journal Article
%T Surfaces containing two circles through each point and decomposition of quaternionic matrices
%A A. Pakharev
%A M. Skopenkov
%J Mathematics
%D 2015
%I arXiv
%X We find all analytic surfaces in space R^3 such that through each point of the surface one can draw two circular arcs fully contained in the surface. The proof uses a new decomposition technique for quaternionic matrices.
%U http://arxiv.org/abs/1510.06510v1