Publications & preprints

Entries are ordered by first arXiv year. Journal details are indicated where available; for the most current version of each paper, follow the arXiv link.

1. Mackey formulas for smooth stacks

   Chenjing Bu, Lucien Hennecart · 2026

   arXiv:2610.29970
2. Commutativity of nilpotent cohomological Hall algebras of A²

   Lucien Hennecart · 2026

   arXiv:2607.06512
3. Hecke operators on symplectic surfaces and χ-independence

   Ben Davison, Lucien Hennecart, Tasuki Kinjo, Olivier Schiffmann, Eric Vasserot · 2026

   arXiv:2607.01355
4. Degenerations of CoHAs of 2-Calabi–Yau categories

   Lucien Hennecart, Shivang Jindal · 2026

   arXiv:2602.18102
5. The BPS decomposition theorem

   Lucien Hennecart, Tasuki Kinjo · 2025

   arXiv:2509.21298
6. Cohomological Mackey formula for quotient stacks

   Lucien Hennecart · 2025

   arXiv:2505.09483
7. Cohomological integrality for symmetric quotient stacks

   Lucien Hennecart · 2024

   arXiv:2408.15786
8. Cohomological integrality for weakly symmetric representations of reductive groups

   Lucien Hennecart · 2024 · Journal of the Institute of Mathematics of Jussieu (2026)

   arXiv:2406.09218 Journal
9. Nonabelian Hodge isomorphisms for stacks and cohomological Hall algebras

   Lucien Hennecart · 2023

   arXiv:2307.09920
10. BPS algebras and generalised Kac–Moody algebras from 2-Calabi–Yau categories

    Ben Davison, Lucien Hennecart, Sebastian Schlegel Mejia · 2023

    arXiv:2303.12592
11. BPS Lie algebras for totally negative 2-Calabi–Yau categories and nonabelian Hodge theory for stacks

    Ben Davison, Lucien Hennecart, Sebastian Schlegel Mejia · 2022

    arXiv:2212.07668
12. Geometric realisations of the unipotent enveloping algebra of a quiver

    Lucien Hennecart · 2022 · Advances in Mathematics 441 (2024)

    arXiv:2209.06552 Journal
13. A quiver analogue of Higman's conjecture

    Lucien Hennecart, Nikolai Perry · 2022

    arXiv:2208.07738
14. Perverse sheaves with nilpotent singular support on the stack of coherent sheaves on an elliptic curve

    Lucien Hennecart · 2021 · Transformation Groups 29 (2024)

    arXiv:2101.03813
15. Microlocal characterization of Lusztig sheaves for affine and g-loops quivers

    Lucien Hennecart · 2020 · Representation Theory 26 (2022)

    arXiv:2006.12780 Journal
16. Asymptotic behaviour of Kac polynomials

    Lucien Hennecart · 2020 · Experimental Mathematics 32 (2023)

    arXiv:2003.06929 Journal Code
17. Isotropic cuspidal functions in the Hall algebra of a quiver

    Lucien Hennecart · 2019 · International Mathematics Research Notices

    arXiv:1903.04378 Journal