David Brewster

I am a PhD student at Harvard.

Research

My research is focused on evolutionary dynamics and topics in mathematical biology.

Info

[ CV | Google Scholar | PubMed | GitHub ]

E-mail: [first name initial] [last name] [at] g [dot] harvard [dot] edu

News

• 2024-10-16 — Fixation times on directed graphs contributed talk at Max Planck Institute for Evolutionary Biology - Evolutionary Graph Theory Workshop
• 2024-10-08 — Visiting student at Charles University

Teaching

• Teaching Fellow for MATH 242/243: Mathematical Biology-Evolutionary Dynamics — Fall 2023 – Fall 2025
• Teaching Fellow for COMPSCI 226r: The Theory of Algorithmic Fairness — Spring 2024
• Teaching Fellow for COMPSCI 224: Algorithms for Data Science — Fall 2023
• Course Assistant for CS 374: Intro to Algorithms and Models of Computation — Fall 2020, Spring 2021
• Course Assistant for CS 126: Software Design Studio — Fall 2017, Spring 2019, Fall 2019, Spring 2020

Papers

1. Speciesism in AI: Evaluating Discrimination Against Animals in Large Language Models
   Monika Jotautaitė, Lucius Caviola, David Brewster, and Thilo Hagendorff
   Working paper
   
   • Thilo's talk on previous work at re:publica 2023
   • Code from paper
2. Maintaining diversity in structured populations
   David Brewster, Jakub Svoboda, Dylan Roscow, Krishnendu Chatterjee, Josef Tkadlec, and Martin Nowak
   Accepted to PNAS Nexus, 2025
   
   • Girish's demo
   • Code from paper
3. Fixation times on directed graphs
   David Brewster, Martin Nowak, and Josef Tkadlec
   PLOS Computational Biology, 2024
   
   • Slides from contributed talk at Workshop on Modeling and Applications of Evolutionary Game Theory
   • Slides from talk at UIUC Algebra-Geometry-Combinatorics Seminar
   • Code from paper
4. Proper elements of Coxeter groups
   with József Balogh and Reuven Hodges
   European Journal of Mathematics, 2024
   • Code from paper
5. Channel capacity of the ribosome
   Daniel Inafuku, Kay Kirkpatrick, Onyema Osuagwu, Qier An, David Brewster, and Mayisha Zeb Nakib
   Physical Review E, 2023
   
   • Article by UIUC Physics Research Highlights
   • Code from paper
6. Proper permutations, Schubert geometry, and randomness
   with Reuven Hodges and Alexander Yong
   Journal of Combinatorics, 2022
   
   • Slides by Alex from ICERM: Geometry and Combinatorics from Root Systems
   • Talk by Alex at ICERM: Geometry and Combinatorics from Root Systems