The focus of this mini-symposium is particularly on DG applications. In fact, a more recent trend is nowadays emerging in the scientific literature, where a much larger number of applications, for which a DG formulation can be supplied, has been brought to the light, so that theoretical results, algorithms, methods and even software tools, initially developed for one specific application, can be adapted, or simply reused, for other applications. Sensors capable to give information about distances are frequently used in these applications, even if their nature often differs from the notion of "sensor" historically used in works on sensor network localization, while the temporal (or dynamical) factor is taking more and more importance. Our list of invited speakers reflects this heterogeneity of applications, with a mathematical background that remains essentially coherent.