Adrien Semin is an expert in the simulation of electromagnetic or acoustic wave propagation in thin layers and capillaries. The French mathematician came to the Technische Universität Berlin as a postdoctoral researcher at the invitation of Dr. Kersten Schmidt. His working group tries to simplify partial differential equations, on which many computer models in the natural sciences are based. Adrien Semin has previously conducted research in Paris and on Crete, where he studied sound waves in fractal structures, among other things.