Postgraduate student at the University of Oxford

I am a third year DPhil student at the Mathematical Insitute in the University of Oxford, supervised by Panos Papazoglou.

I am funded by a scholarship from the Heilbronn Institute for Mathematical Research, and also currently hold a Graduate Development Scholarship at St Anne's College.

I previously completed the MFoCS MSc here at Oxford, funded by a grant from the James Pantyfedwen Foundation. Before this, I was an undergraduate student at the University of Bristol, where I earned a BSc in Mathematics and Computer Science.

I am broadly interested in geometric group theory, particularly questions relating to splittings, coarse geometry, and algorithmic problems.

Find a CV here (last updated 21 August 2024), and feel free to get in contact for more detail.

Preprints

1. MacManus, J. (2024). Fat minors in finitely presented groups. arXiv preprint. arXiv:2408.10748. Link


2. MacManus, J. (2024). A note on transitve graphs quasi-isometric to planar (Cayley) graphs. arXiv preprint. arXiv:2407.13375. Link


3. Baligács, J., MacManus, J. (2024). The metric Menger problem. arXiv preprint. arXiv:2403.05630. Link


4. MacManus, J., Mineh L. (2024). Tiling in some nonpositively curved groups. arXiv preprint. arXiv:2401.09545. Link


5. MacManus, J. (2023). Accessibility, planar graphs, and quasi-isometries. arXiv preprint arXiv:2310.15242. Link

Publications

1. MacManus, J. (2022). Deciding if a hyperbolic group splits over a given quasiconvex subgroup. To appear in Groups, Geom. Dyn. arXiv link


2. Alexandru, C. -M., Bridgett-Tomkinson, E., Linden, N., MacManus, J., Montanaro, A., & Morris, H. (2020). Quantum speedups of some general-purpose numerical optimisation algorithms. Quantum Science and Technology, 5(4), 045014. arXiv link

Things I've done

• I ran the the Junior Topology and Group Theory seminar at Oxford for 2022-23.

Contact info

You can reach me by email at: macmanus @ maths.ox.ac.uk

Alternatively, find me on the following platforms.