Mathematics
Research in mathematics is guided, on the one hand by the purely abstract ideals of fundamental research, and on the other hand by the many applications which have benefited from recent mathematical results. For example, scanners are based on integral geometry (the Radon transform); the transmission of messages, on algebraic combinatorics (the theory of codes); meteorological forecasts, on mathematical and numerical analysis (differential equations); image processing, on a recent extension of Fourier analysis (wavelets); and internet search engines, on spectral graph theory. On another front, training in mathematics is an excellent means of acquiring the two tools essential for solving problems: creative imagination and intellectual rigor.

An essential aspect of the daily life of doctoral students and other researchers is the constant exchange of ideas with mathematicians from all over the world. For example, during the months preceding the drafting of this text, we welcomed visitors from the following countries: Germany, Austria, Brazil, Bulgaria, Canada, China, the United States, Spain, Finland, France, Great Britain, Hungary, India, Italy Israel, Japan, Poland, Russia and Sweden.


