The Survey of Interdisciplinary Mathematics illustrates the role of mathematical modelling, theory and simulation in gaining insight into applied research questions, exemplified for Inverse ill-posed Problems, Regularization Methods and Applications in Atmospheric Aerosol Physics (apl. Prof Böckmann), Mathematical Pharmacology (Dr Hartung) and Approximation of large-scale dynamical systems (Prof Freitag). There will be a fourth topic (Dr Lie).