%0 Journal Article %T Gibbs-non-Gibbs properties for n-vector lattice and mean-field models %A A. C. D. van Enter %A C. Kuelske %A A. A. Opoku %A W. M. Ruszel %J Mathematics %D 2008 %I arXiv %X We review some recent developments in the study of Gibbs and non-Gibbs properties of transformed n-vector lattice and mean-field models under various transformations. Also, some new results for the loss and recovery of the Gibbs property of planar rotor models during stochastic time evolution are presented. %U http://arxiv.org/abs/0812.1751v1