Mathematical interests

  • Non/commutative tensor-triangular geometry
  • Block theory and local-global modular representation theory of finite groups
  • Intersections between representation theory and tensor-triangular geometry
  • Invertible objects and Picard groups
  • Permutation modules and their role in representation theory

Publications and preprints

Title Co-Authors Journal arXiv
10. Re-framing the classification of ideals in noncommutative tensor-triangular geometry Timothy de Deyn   2510.23767
9. Permutation twisted cohomology, remixed     2509.00954
8. The Euler characteristic of an endotrivial complex Nadia Mazza Submitted 2508.07404
15/2. Permutation Modules and Endotrivial Complexes Advisor: Robert Boltje Ph.D. Thesis, UC Santa Cruz  
7. On functoriality and the tensor product property in noncommutative tensor-triangular geometry   Submitted 2505.01899
6. On endosplit $p$-permutation resolutions and Broue’s conjecture for $p$-solvable groups   Submitted 2408.04094
5. Galois descent of splendid Rickard equivalences between blocks of $p$-nilpotent groups   Proc. Amer. Math. Soc. 153 (5), 1893-1902 (2025) 2405.16061
4. The classification of endotrivial complexes   Adv. Math. 478, 110414 (2025) 2403.04088
3. Relatively endotrivial complexes   J. Pure Appl. Algebra, 229 (2), 107867 (2025) 2402.08042
2. Brauer pairs for splendid Rickard equivalences Jadyn V. Breland Submitted 2312.10258
1. Endotrivial complexes   J. Algebra, 650, 173-218 (2024) 2309.12138
0. A proof of the optimal leapfrogging conjecture Arthur T. Benjamin Involve, 18 (1), 105–122 (2025) 2110.08319
-1/2. The Combinatorial Polynomial Hirsch Conjecture Advisor: Mohamed Omar Harvey Mudd College Senior Theses, 109  
-1. Challenging knight’s tours Arthur T. Benjamin Math Horizons, 25 (3), 18-21 (2018)  

(Listed in chronological order)


Ongoing Projects

Here are some things I’m thinking about at the moment. More details will appear when they exist, or more likely, will be added to the above table.

  • Tensor-triangular geometry vs. Tensor-exact or tensor-abelian geometry (w/ Timothy de Deyn)
  • Integral permutation modules (w/ Juan Omar Gomez)
  • Things involving permutation module categories for oligomorphic groups (w/ Nate Harman)
  • Noetherianity of the (remixed) twisted cohomology ring
  • Classification of central thick subcategories of a block algebra $kGb$
  • Is the frame of smashing tensor-ideals spatial? (This is perhaps hard)