The Kakeya needle problem (junior colloquium)

Mathematisches Kolloquium | 17.05.2017 14:15 - 15:15

Antonio Cordoba (Ciudad Universitaria de Cantoblanco)

The existence of plane sets whose measure is as small as we wish, but where a straight line segment (a needle) can be moved continuously to interchange its extreme points position, has become a central character in modern harmonic analysis, introducing many interesting and open problems.