Seminario Teoría de Grupos ICMAT-UAM 
 
Miercoles 28/11/2018, 11:30, Aula 520, UAM
Ponente: Urban Jezernik (UPV/EHU) 
 
Título: 
Rationality of quotient varieties 
 
Abstract: 
The rationality problem in algebraic geometry asks whether a given irreducible 
variety is birational to a projective space. We will gently introduce the 
problem and take a look at some recent advances, principally in the direction 
of negative examples constructed via cohomological obstructions. Special focus 
will be set on quotient varieties by linear group actions.