TY - THES AB - In this thesis we exhibit an obstruction group for the following deformation theoretic problem. Given a diagram and a subdiagram of ringed topoi over a fixed ringed topos $\mathcal{S}$ and given a deformation $\xi$ of the subdiagram, what is an obstruction group for finding a deformation of the diagram reducing to the given deformation $\xi$ of the subdiagram? We will calculate this obstruction group for a large variety of interesting cases as explicitly as possible. The results hold as well in the case of diagrams and subdiagrams of schemes over a fixed scheme $S$. DA - 2013 KW - obstructions KW - cotangent braid KW - diagrams of ringed topoi KW - deformation theory KW - obstruction theory KW - cotangent complex KW - diagrams of schemes KW - deformations KW - diagrams LA - eng PY - 2013 TI - Obstruction groups for extending deformations of subdiagrams to deformations of diagrams in the categories of ringed topoi and schemes UR - https://nbn-resolving.org/urn:nbn:de:hbz:361-26237940 Y2 - 2024-11-21T16:19:21 ER -