Bryce Clarke

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I am a PhD student, supervised by Emeritus Professor Michael Johnson and Emeritus Professor Dominic Verity.

I am a member of the Centre of Australian Category Theory (CoACT) and the Department of Mathematics and Statistics at Macquarie University, Sydney, Australia.

I am interested in category theory, and my current research focuses on lenses, opfibrations, and cofunctors.

Research papers


  1. Delta lenses as coalgebras for a comonad, in Proceedings Bx 2021, CEUR Workshop Proceedings 2999 (2021), 18--27.
  2. A diagrammatic approach to symmetric lenses, in Proceedings ACT 2020, Electronic Proceedings in Theoretical Computer Science 333 (2021), 79--91.
  3. Internal split opfibrations and cofunctors, Theory and Applications of Categories 35 (2020), 1608--1633.
  4. Internal lenses as functors and cofunctors, in Proceedings ACT 2019, Electronic Proceedings in Theoretical Computer Science 323 (2020), 183--195.


Research talks

Conferences and workshops

Australian Category Seminar

Here is a list of my talks at the Australian Category Seminar.

Academic activities

Last update: 2021-11-13.