%0 Journal Article %T Computably Enumerable Equivalence Relations %A Su Gao %A Peter Gerdes %J Mathematics %D 2010 %I arXiv %R 10.1023/A:1010521410739 %X We study computably enumerable equivalence relations (ceers) on N and unravel a rich structural theory for a strong notion of reducibility among ceers. %U http://arxiv.org/abs/1012.0944v1