%0 Journal Article %T Strongly ¨¦tale difference algebras and Babbitt's decomposition %A Ivan Toma£¿i£¿ %A Michael Wibmer %J Mathematics %D 2015 %I arXiv %X We introduce a class of strongly \'{e}tale difference algebras, whose role in the study of difference equations is analogous to the role of \'{e}tale algebras in the study of algebraic equations. We deduce an improved version of Babbitt's decomposition theorem and we present applications to difference algebraic groups and the compatibility problem. %U http://arxiv.org/abs/1512.00495v1