L3

OWL Meeting

We consider as a starting point a problem raised by Kunen and Tall as to whether

the real continuum can have non-homeomorphic versions in different submodels of

the universe of all sets. Its resolution depends on modest large cardinals.

In general Junqueira and Tall have made a study of such "substructure spaces"

where the topology of a subspace can be different from the usual relative

topology.

This is one of several talks that Raphael Rouquier is organising next week on

stability conditions on triangulated categories. I have been asked to point out

that the talk will be very similar to a talk given in Oxford, by the speaker,

last June.