Local reconfiguration algorithms for geometric modular systems : 3D hybrid programmable matter and distributed sliding squares / David Liedtke ; Advisor: Prof. Dr. Christian Scheideler ; Reviewers: Prof. Dr. Christian Scheideler, Prof. Dr. Sevag Gharibian, Prof. Dr. Peter Kling ; Members of the Doctoral Panel: Prof. Dr. Christian Scheideler (Chairperson), Prof. Dr. Sevag Gharibian, Prof. Dr. Marcel Campen, Dr. Matthias Fischer, Dr. Thorsten Götte