IPM Calendar 
Friday 22 January 2021   Today  
Events for day: Wednesday 20 January 2021    
           16:30 - 18:00     Mathematics Colloquium
What is Geometry ? Elements of Answer from a Grothendieckian Perspective


The ancient Greek word "geometry" is, with its etymological meaning of "measurement of the earth", one of the oldest of mathematics. The discovery of non-euclidean geometries in the 19th century dramatically increased the scope of geometry. This scope was further extended in the 20th century by dividing geometry into branches differing in their objects of study and their methods: topology, differential geometry, Riemannian geometry, symplectic geometry, complex geometry, algebraic geometry, ... Grothendieck is known primarily for having re-founded algebraic geometry on entirely new bases. But he himself considered himself to be ...