%0 Journal Article
%T Waldhausen's Theorem
%A Saul Schleimer
%J Mathematics
%D 2009
%I arXiv
%R 10.2140/gtm.2007.12.299
%X This note is an exposition of Waldhausen's proof of Waldhausen's Theorem: the three-sphere has a single Heegaard splitting, up to isotopy, in every genus. As a necessary step we also give a sketch of the Reidemeister-Singer Theorem.
%U http://arxiv.org/abs/0904.0182v1