David Roberts
Home Page

This is the private area of David Roberts within the nLab.

I am a visiting fellow at the University of Adelaide in South Australia, and was a postdoc there for a couple of years.

For my papers (including PhD thesis) please see here. This site is to gather teaching material, but also more ephemeral things.


  • Theorem A for topological categories - this is a version of Quillenā€™s Theorem A for categories in TopTop. As a corollary, with a condition on the unit map of the codomain we get that geometric realisation of an š¯’©\mathcal{N}-equivalence is a homotopy equivalence.

  • Serreā€™s proof of the Grothendieck-Serre theorem on the Brauer group of a compact space. (to be uploaded).

Mathematical publishing

I have views about the current system of academic publishing, especially how it impacts mathematics. Two links of interest:

Less polished ideas

Random ideas

Revised on August 10, 2015 06:03:10 by Anonymous Coward? (