%0 Journal Article %T Cohomology of congruence schemes %A Anton Deitmar %J Mathematics %D 2013 %I arXiv %X Modules for sesquiads and congruence schemes are introduced. It is shown that the corresponding categories are belian and that base change functors establish an ascent datum which allows for a cohomology theory to be established. %U http://arxiv.org/abs/1307.6014v1