University of Cambridge > > Junior Category Theory Seminar > Adjunctions induced by Kan Extensions between Grothendieck Toposes

Adjunctions induced by Kan Extensions between Grothendieck Toposes

Add to your list(s) Download to your calendar using vCal

If you have a question about this talk, please contact Sean Moss.

It is well know that a flat functor between two small categories will induce an adjoint triple between the respective presheaf categories via left and right Kan extensions. I will explain how certain conditions imposed on the flat functor can enable us to restrict this adjunction to subcategories of sheaves, and I will comment on the significance of this in the study of local geometric morphisms.

I will briefly sketch a gentle introduction to Kan extensions for those who aren’t yet familiar with them.

This talk is part of the Junior Category Theory Seminar series.

Tell a friend about this talk:

This talk is included in these lists:

Note that ex-directory lists are not shown.


© 2006-2024, University of Cambridge. Contact Us | Help and Documentation | Privacy and Publicity