%0 Journal Article %T Manifolds with large isotropy groups %A Andreas Kollross %A Evangelia Samiou %J Mathematics %D 2006 %I arXiv %R 10.1515/ADVGEOM.2010.040 %X We classify all simply connected Riemannian manifolds whose isotropy groups act with cohomogeneity less than or equal to two. %U http://arxiv.org/abs/math/0612314v1