Research

with P. Bader, R. Boyd, G. Carfora, G. Corrigan, D. Galvin, J. Nicholson, W. Niu, I. Nonino, M. Pencovitch, M. Powell: A survey on mapping class groups of 3-manifolds. arXiv:2609.00233
Realising automorphisms of the extended intersection form by diffeomorphisms. arXiv:2608.24617
with J. Nicholson, M. Powell: Generalised doubles and simple homotopy types of high dimensional manifolds. arXiv:2409.03082
with J. Nordström: Rational homotopy and simply-connected 8-manifolds. arXiv:2105.13660
Sum of embedded submanifolds. arXiv:1705.03836

with D. Crowley: The Witt groups of extended quadratic forms over ℤ. To appear in Münster J. Math. arXiv:2404.09189
with J. Nicholson, M. Powell: Simple homotopy types of even dimensional manifolds. To appear in Ann. Sci. Éc. Norm. Supér. arXiv:2312.00322

Extended surgery theory for simply-connected 4k-manifolds, Compos. Math. 162 (2026), no. 2, 451-507.
with D. Crowley: The smooth classification of 4-dimensional complete intersections, Geom. Topol. 29 (2025), no. 1, 269-311.
with D. Crowley, B. Sims, H. Yang: Turning vector bundles, Algebr. Geom. Topol. 24 (2024), no. 5, 2807-2849.
with A. Szűcs, T. Terpai: Singularities and stable homotopy groups of spheres I., J. Singul. 17 (2018), 1-27.
Cobordism groups of simple branched coverings, Acta Math. Hungar. 153 (2017), no. 2, 449-489.