A special issue for Henri Poincaré

One hundred years ago, on 17 July 1912, Henri Poincare died at the age of only 58 years. He had been unusually productive with fundamental results in mathematics, physics and astronomy, and he can be regarded as one of the most important mathematical physicists of all times; his work had a major impact throughout the twentieth century. He reshaped several existing fields and created some new ones in pure and applied mathematics. Highlights include his thesis which excels in the qualitative, geometric approach to differential equations, his analysis of automorphic functions that put him in contact with Fuchs and Klein, his creation of the theory of dynamical systems and his major influence on topology (analysis situs).