Faculty profile
Theo Johnson-Freyd
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Read how they describe their research on their Dalhousie University profile.
Latest papers
Schopieray's Galois-modular extension conjecture
arXiv (Cornell University) · 2026 · first author
Schopieray's Galois-modular extension conjecture
arXiv (Cornell University) · 2026 · first author
On the structure of Witt groups and minimal extension conjecture
arXiv (Cornell University) · 2026 · first author
55 publications.
Schopieray's Galois-modular extension conjecture
Theo Johnson-Freyd
Schopieray's Galois-modular extension conjecture
Theo Johnson-Freyd
On the structure of Witt groups and minimal extension conjecture
Theo Johnson-Freyd, Victor Ostrik, Zhiqiang Yu
McNamara-Wang Reconstruction
Theo Johnson-Freyd
On the structure of Witt groups and minimal extension conjecture
Theo Johnson-Freyd, Victor Ostrik, Zhiqiang Yu
Condensations in higher categories
Gaiotto D, Johnson-Freyd T
(3+1)𝐷 topological orders with only a ℤ₂-charged particle
Theo Johnson-Freyd
Ground-state degeneracy of twisted sectors of Conway moonshine SCFT
Alissa Furet, Theo Johnson-Freyd
Higher tensor categories and their extensions: notes from the Scottish Talbot On Algebra and Topology
Douglas Xavier de Andrade, Julia Bierent, Jennifer Brown, Tudor Caba, Matthew Cellot, J. E. Davies, Adrien DeLazzer Meunier, Jannik Gröne, Benjamin Haïoun, Alea Hofstetter, Theo Johnson-Freyd, David Jordan, Tessa Kammermeier, Patrick Kinnear, Cameron Krulewski, Theodoros Lagiotis, Leon Liu, Salvador, Adrià Marín, Nivedita Nivedita, David Reutter, Lorenzo Riva, Iordanis Romaidis, Jack Romö, Sean Sanford, Michail Tagaris, Daniel Marangon Duffles Teixeira, Jackson Van Dyke, Matthias Vancraeynest, Chetan Vuppulury, Matthew Yu, et al. (31 authors)
The Classification of Fusion 2-Categories
Thibault D. Décoppet, Peter Huston, Theo Johnson-Freyd, Dmitri Nikshych, David Penneys, Julia Plavnik, David Reutter, Matthew Yu
Frequent collaborators
- Theodore Johnson-Freyd and Theo Johnson-Freyd: 55 shared papers
- Davide Gaiotto and Theodore Johnson-Freyd: 5 shared papers
- Davide Gaiotto and Theo Johnson-Freyd: 5 shared papers
- Department of Mathematics & Statistics
- Department of Physics and Astronomy
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Profile data last refreshed on September 29, 2026 from the university directory, publication records and public research funding records.