Transmissão através de Videoconferência
Por Charles Morgan (UCL).
The ultrafilter spectrum for a given cardinal $\kappa$ is the collection of possible sizes of bases for ultrafilters on $\kappa$. The talk will introduce the problem of what one can say about the ultrafilter spectrum and consider older and some more recent results addressing this question. Along the way the current state of set theory will be briefly be discussed, with questions about the ultrafilter spectrum serving as illustrations of some strands of interests.
Very little technical set theoretic knowledge should be necessary for the large bulk of the talk.
Zoom | ID da reunião: 890 8479 3299 - senha de acesso: 409604
16h00
CMAFcIO - Centro de Matemática, Aplicações Fundamentais e Investigação Operacional
