David Roberts
Home Page

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

I am a research associate (=postdoc) at the University of Adelaide in South Australia.

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 Quillen’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 𝒩\mathcal{N}-equivalence is a homotopy equivalence.

  • Serre’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 June 30, 2014 20:17:50 by David Roberts (