%0 Journal Article
%T Co-c.e. spheres and cells in computable metric spaces
%A Zvonko Iljazovic
%J Mathematics
%D 2011
%I arXiv
%R 10.2168/LMCS-7(3:5)2011
%X We investigate conditions under which a co-computably enumerable set in a computable metric space is computable. Using higher-dimensional chains and spherical chains we prove that in each computable metric space which is locally computable each co-computably enumerable sphere is computable and each co-c.e. cell with co-c.e. boundary sphere is computable.
%U http://arxiv.org/abs/1106.2769v2